annotate Discovery/Src/vpm.c @ 902:d4622533271d Evo_2_23

VPM table mode: Because of the model maths, usage of float data type and so on it may happen that the TTS decreases during ascent and continues calculation of the vpm. To keep the values stable the vpm table mode has been introduces. Instead of continously calculation of the stops the stop time is decreased if the diver is close to a deco stop. If the table is violated (e.g. by not doing gas change) the table will be updated to the new, longer runtime. The table will not be switch back to a shorter version in case e.g. the missed gas change is performed
author Ideenmodellierer
date Wed, 02 Oct 2024 22:18:19 +0200
parents a0900e4df15c
children 46a21ff3f5ab
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1 ///////////////////////////////////////////////////////////////////////////////
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2 /// -*- coding: UTF-8 -*-
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3 ///
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4 /// \file Discovery/Src/vpm.c
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5 /// \brief critical_volume comment by hw
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6 /// \author Heinrichs Weikamp, Erik C. Baker
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7 /// \date 19-April-2014
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8 ///
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9 /// \details
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10 ///
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11 /// $Id$
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12 ///////////////////////////////////////////////////////////////////////////////
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13 /// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
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14 ///
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15 /// This program is free software: you can redistribute it and/or modify
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16 /// it under the terms of the GNU General Public License as published by
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17 /// the Free Software Foundation, either version 3 of the License, or
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18 /// (at your option) any later version.
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19 ///
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20 /// This program is distributed in the hope that it will be useful,
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21 /// but WITHOUT ANY WARRANTY; without even the implied warranty of
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22 /// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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23 /// GNU General Public License for more details.
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24 ///
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25 /// You should have received a copy of the GNU General Public License
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26 /// along with this program. If not, see <http://www.gnu.org/licenses/>.
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27 //////////////////////////////////////////////////////////////////////////////
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28 /// \par Varying Permeability Model (VPM) Decompression Program in c (converted from FORTRAN)
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29 ///
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30 /// Author: Erik C. Baker
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31 ///
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32 /// "DISTRIBUTE FREELY - CREDIT THE AUTHORS"
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33 ///
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34 /// This program extends the 1986 VPM algorithm (Yount & Hoffman) to include
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35 /// mixed gas, repetitive, and altitude diving. Developments to the algorithm
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36 /// were made by David E. Yount, Eric B. Maiken, and Erik C. Baker over a
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37 /// period from 1999 to 2001. This work is dedicated in remembrance of
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38 /// Professor David E. Yount who passed away on April 27, 2000.
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39 ///
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40 /// Notes:
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41 /// 1. This program uses the sixteen (16) half-time compartments of the
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42 /// Buhlmann ZH-L16 model. The optional Compartment 1b is used here with
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43 /// half-times of 1.88 minutes for helium and 5.0 minutes for nitrogen.
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44 ///
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45 /// 2. This program uses various DEC, IBM, and Microsoft extensions which
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46 /// may not be supported by all FORTRAN compilers. Comments are made with
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47 /// a capital "C" in the first column or an exclamation point "!" placed
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48 /// in a line after code. An asterisk "*" in column 6 is a continuation
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49 /// of the previous line. All code, except for line numbers, starts in
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50 /// column 7.
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51 ///
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52 /// 3. Comments and suggestions for improvements are welcome. Please
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53 /// respond by e-mail to: EBaker@se.aeieng.com
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54 ///
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55 /// Acknowledgment: Thanks to Kurt Spaugh for recommendations on how to clean
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56 /// up the code.
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57 /// ===============================================================================
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58 /// Converted to vpmdeco.c using f2c; R.McGinnis (CABER Swe) 5/01
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59 /// ===============================================================================
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60 ///
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61 /// ************************ Heirichs Weipkamp **************************************
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62 ///
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63 /// The original Yount & Baker code has been adjusted for real life calculation.
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64 ///
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65 /// 1) The original main function has been split in several functions
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66 ///
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67 /// 2) When the deco zone is reached (while ascending) the gradient factors are kept fix
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68 /// and critical volume algorithm is switched of. maxfirststopdepth is kept fix
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69 /// to make shure Boeyls Law algorithm works correctly
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70 ///
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71 /// 4) gas_loadings_ascent_descend heeds all gaschanges and CCR support has been added
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72 ///
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73
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74 #include <stdio.h>
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75 #include <stdlib.h>
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76 #include <string.h>
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77 #include <math.h>
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78 #include <time.h>
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79
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80 #include "vpm.h"
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81 #include "decom.h"
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82
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83 #define GAS_N2 0
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84 #define GAS_HE 1
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85
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86 static const _Bool buehlmannSafety = true;
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87 /* Common Block Declarations */
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88
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89 extern const float SURFACE_TENSION_GAMMA; //!Adj. Range: 0.015 to 0.065 N/m
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90 extern const float SKIN_COMPRESSION_GAMMAC; //!Adj. Range: 0.160 to 0.290 N/m
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91 extern const float UNITS_FACTOR;
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92 extern const float WATER_VAPOR_PRESSURE; // (Schreiner value) based on respiratory quotien
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93 extern const float CRIT_VOLUME_PARAMETER_LAMBDA; //!Adj. Range: 6500 to 8300 fsw-min
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94 //extern const float GRADIENT_ONSET_OF_IMPERM_ATM; //!Adj. Range: 5.0 to 10.0 atm
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95 extern const float REGENERATION_TIME_CONSTANT; //!Adj. Range: 10080 to 51840 min
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96 //extern const float PRESSURE_OTHER_GASES_MMHG; //!Constant value for PO2 up to 2 atm
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97 extern const float CONSTANT_PRESSURE_OTHER_GASES; // PRESSURE_OTHER_GASES_MMHG / 760. * UNITS_FACTOR;
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98
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99 extern const float HELIUM_TIME_CONSTANT[];
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100 extern const float NITROGEN_TIME_CONSTANT[];
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101
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102 static float minimum_deco_stop_time;
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103 static float run_time, run_time_first_stop;
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104 static float segment_time;
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105 static short mix_number;
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106 static float barometric_pressure;
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107 static _Bool altitude_dive_algorithm_off;
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108 static _Bool units_equal_fsw, units_equal_msw;
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109
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110 /* by hw 11.06.2015 to allow */
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111 static float gCNS_VPM;
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112
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113 static float helium_pressure[16], nitrogen_pressure[16];
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114 static float surface_phase_volume_time[16];
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115 static float regenerated_radius_he[16], regenerated_radius_n2[16];
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116 static float allowable_gradient_he[16], allowable_gradient_n2[16];
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117
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118 //_Bool deco_zone_reached;
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119 static _Bool critical_volume_algorithm_off;
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120 static float max_first_stop_depth;
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121 static float max_deco_ceiling_depth;
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122 //Boylslaw compensation
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123 static float deco_gradient_he[16];
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124 static float deco_gradient_n2[16];
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125 static int vpm_calc_what;
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126 static int count_critical_volume_iteration;
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127 static short number_of_changes;
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128 static float depth_change[11];
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129 static float step_size_change[11];
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130 static float rate_change[11];
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131 static short mix_change[11];
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132
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133 static const _Bool vpm_b = true;
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134
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135 static SDecoinfo vpmTable;
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136
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137 extern const float float_buehlmann_N2_factor_expositon_20_seconds[];
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138 extern const float float_buehlmann_He_factor_expositon_20_seconds[];
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139 extern const float float_buehlmann_N2_factor_expositon_one_minute[];
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140 extern const float float_buehlmann_He_factor_expositon_one_minute[];
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141 extern const float float_buehlmann_N2_factor_expositon_five_minutes[];
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142 extern const float float_buehlmann_He_factor_expositon_five_minutes[];
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143 extern const float float_buehlmann_N2_factor_expositon_one_hour[];
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144 extern const float float_buehlmann_He_factor_expositon_one_hour[];
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145
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146 static float depth_start_of_deco_calc;
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147 static float depth_start_of_deco_zone;
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148 static float first_stop_depth;
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149 static float run_time_start_of_deco_zone;
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150
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151 static float r_nint(float *x);
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152 static float r_int(float *x);
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153 static _Bool nullzeit_unter60;
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154 static int vpm_calc_status;
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155 static _Bool buehlmann_wait_exceeded = false;
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156
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157 static SLifeData* pInput = NULL;
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158 static SVpm* pVpm = NULL;
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159 static SDecoinfo* pDecoInfo = NULL;
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160 static SDiveSettings* pDiveSettings = NULL;
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161
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162 static float r_nint(float *x)
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163 {
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164 return( (*x)>=0 ?
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165 floorf(*x + 0.5f) : -floorf(0.5f - *x) );
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166 }
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167
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168 static float r_int(float *x)
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169 {
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170 return( (*x>0.0) ? floorf(*x) : -floorf(- *x) );
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171 }
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172
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173 /** private functions
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174 */
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175 extern int radius_root_finder (float *a, float *b, float *c,float *low_bound, float *high_bound, float *ending_radius);
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176
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177 static int nuclear_regeneration(float *dive_time);// clock_();
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178 static int calc_deco_ceiling(float *deco_ceiling_depth,_Bool fallowablw);
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179 static int critical_volume(float *deco_phase_volume_time); ;
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180 static int calc_start_of_deco_zone(float *starting_depth, float *rate, float *depth_start_of_deco_zone);
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181 static int calc_initial_allowable_gradient(void);
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182 static void decompression_stop(float *deco_stop_depth, float *step_size, _Bool final_deco_calculation);
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183 static int gas_loadings_ascent_descen(float* helium_pressure, float* nitrogen_pressure, float starting_depth,float ending_depth, float rate,_Bool check_gas_change);
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184 static int calc_surface_phase_volume_time(void);
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185 static int calc_max_actual_gradient(float *deco_stop_depth);
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186 static int projected_ascent(float *starting_depth, float *rate, float *deco_stop_depth, float *step_size);
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187 static void vpm_calc_deco(void);
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188 static int vpm_calc_critcal_volume(_Bool begin,_Bool calc_nulltime);
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189 static int vpm_check_converged(_Bool calc_nulltime);
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190 static int vpm_calc_final_deco(_Bool begin);
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191 static void BOYLES_LAW_COMPENSATION (float* First_Stop_Depth,float * Deco_Stop_Depth,float* Step_Size);
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192 static int vpm_calc_ndl(void);
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193 static void vpm_init_1(void);
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194 static void vpm_calc_deco_ceiling(void);
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195
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196 static void vpm_init_1(void)
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197 {
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198 units_equal_msw = true;
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199 units_equal_fsw = false;
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200 altitude_dive_algorithm_off= true; //!Options: ON or OFF
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201 minimum_deco_stop_time=1.0; //!Options: float positive number
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202 critical_volume_algorithm_off= false; //!Options: ON or OFF
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203 run_time = 0.;
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204 //barometric_pressure = dive_data.surface * 10;
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205
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206 //mix_number = dive_data.selected_gas + 1;
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207
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208 max_first_stop_depth = 0;
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209 max_deco_ceiling_depth = 0;
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210 //deco_zone_reached = false;
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211 depth_start_of_deco_calc = 0;
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212 depth_start_of_deco_zone = 0;
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213 first_stop_depth = 0;
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214 run_time_start_of_deco_zone = 0;
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215
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216 gCNS_VPM = 0;
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217 }
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218
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219 float vpm_get_CNS(void)
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220 {
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221 return gCNS_VPM;
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222 }
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223
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224
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225 void vpm_maintainTable(SLifeData* pLifeData,SDecoinfo* pDecoInfo)
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226 {
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227 static uint32_t lastDiveSecond = 0;
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228 uint8_t actual_deco_stop = 0;
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229 int8_t index = 0;
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230 uint8_t decreaseStopTime = 1;
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231
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232 if(lastDiveSecond < pLifeData->dive_time_seconds)
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233 {
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234 lastDiveSecond = pLifeData->dive_time_seconds;
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235 actual_deco_stop = decom_get_actual_deco_stop((SDiveState*)stateUsed);
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236
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237 pDecoInfo->output_time_to_surface_seconds = 0;
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238 for(index = DECOINFO_STRUCT_MAX_STOPS -1 ;index >= 0; index--)
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239 {
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240 if(pDecoInfo->output_stop_length_seconds[index] > 0)
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241 {
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242 if(decreaseStopTime)
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243 {
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244 if((pLifeData->depth_meter > (float)(actual_deco_stop - 0.5))
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245 && (pLifeData->depth_meter < (float)actual_deco_stop + 1.5))
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246 {
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247 pDecoInfo->output_stop_length_seconds[index]--;
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248 decreaseStopTime = 0;
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249 }
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250 }
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251 pDecoInfo->output_time_to_surface_seconds += pDecoInfo->output_stop_length_seconds[index];
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252 }
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253 }
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254 pDecoInfo->output_time_to_surface_seconds += pLifeData->depth_meter / 10.0 * 60.0;
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255 }
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256 else if(lastDiveSecond > pLifeData->dive_time_seconds)
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257 {
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258 lastDiveSecond = pLifeData->dive_time_seconds;
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259 }
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260 }
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261
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262 int vpm_calc(SLifeData* pINPUT,
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263 SDiveSettings* pSettings,
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264 SVpm* pVPM,
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265 SDecoinfo*
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266 pDECOINFO,
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267 int calc_what)
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268 {
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269 static uint8_t vpmTableActive = 0;
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270
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271 vpm_init_1();
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272 //decom_CreateGasChangeList(pSettings, pINPUT);
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273 vpm_calc_what = calc_what;
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274 /**clear decoInfo*/
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275
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276 if((vpmTableActive) && (vpm_calc_what == DECOSTOPS))
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277 {
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278 memcpy(&vpmTable, pDECOINFO, sizeof(SDecoinfo)); /* save changes done by e.g. the simulator */
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279 }
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280 pDECOINFO->output_time_to_surface_seconds = 0;
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281 pDECOINFO->output_ndl_seconds = 0;
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282 pDECOINFO->output_ceiling_meter = 0;
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283 pDECOINFO->super_saturation = 0;
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284 uint8_t tmp_calc_status;
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285 for(int i=0;i<DECOINFO_STRUCT_MAX_STOPS;i++)
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286 {
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287 pDECOINFO->output_stop_length_seconds[i] = 0;
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288 }
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289
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290 if(pINPUT->dive_time_seconds_without_surface_time < 60)
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291 {
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292 vpm_calc_status = CALC_NDL;
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293 return vpm_calc_status;
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294 }
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295 pVpm = pVPM;
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296 pInput = pINPUT;
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297 pDecoInfo = pDECOINFO;
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298 pDiveSettings = pSettings;
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299
292
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300 if(vpm_calc_status == CALC_NDL)
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301 {
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302 tmp_calc_status = vpm_calc_ndl();
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303 }
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304 else
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305 {
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306 tmp_calc_status = CALC_BEGIN;
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307 }
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308 //Normal Deco calculation
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309 if(tmp_calc_status != CALC_NDL)
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310 {
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311 max_first_stop_depth = pVpm->max_first_stop_depth_save;
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312 run_time_start_of_deco_zone = pVpm->run_time_start_of_deco_zone_save;
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313 depth_start_of_deco_zone = pVpm->depth_start_of_deco_zone_save;
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314 for (int i = 0; i < 16; ++i) {
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315 helium_pressure[i] = pInput->tissue_helium_bar[i] * 10;
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316 nitrogen_pressure[i] = pInput->tissue_nitrogen_bar[i] * 10;
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317 }
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318 vpm_calc_deco();
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319 tmp_calc_status = vpm_calc_critcal_volume(true,false);
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320 if(vpm_calc_what == DECOSTOPS)
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321 {
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322 pVpm->max_first_stop_depth_save = max_first_stop_depth;
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323 pVpm->run_time_start_of_deco_zone_save = run_time_start_of_deco_zone;
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324 pVpm->depth_start_of_deco_zone_save = depth_start_of_deco_zone;
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325 }
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326 }
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327
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328 //Only Decostops not futute stops
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329 if(vpm_calc_what == DECOSTOPS)
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330 {
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331 vpm_calc_status = tmp_calc_status;
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332 if(pSettings->vpm_tableMode) /* store the most conservative deco plan and stick to it. */
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333 {
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334 if((int16_t)(pDECOINFO->output_time_to_surface_seconds - vpmTable.output_time_to_surface_seconds) > 60)
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335 {
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336 memcpy(&vpmTable, pDECOINFO, sizeof(SDecoinfo));
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337 vpmTableActive = 1;
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338 }
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339 else
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340 {
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341 if(vpmTable.output_time_to_surface_seconds > 0)
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342 {
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343 vpm_maintainTable(pINPUT, &vpmTable);
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344 vpmTable.output_ceiling_meter = pDECOINFO->output_ceiling_meter;
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345 memcpy(pDECOINFO, &vpmTable, sizeof(SDecoinfo));
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346 }
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347 }
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348 }
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349 }
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350 return vpm_calc_status;
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351 }
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352
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353 void vpm_saturation_after_ascent(SLifeData* input)
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354 {
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355 int i = 0;
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356 for (i = 0; i < 16; ++i) {
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357 pInput->tissue_helium_bar[i] = helium_pressure[i] / 10;
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358 pInput->tissue_nitrogen_bar[i] = nitrogen_pressure[i] / 10;
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359 }
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360 pInput->pressure_ambient_bar = pInput->pressure_surface_bar;
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361 }
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362 /* =============================================================================== */
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363 /* NOTE ABOUT PRESSURE UNITS USED IN CALCULATIONS: */
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364 /* It is the convention in decompression calculations to compute all gas */
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365 /* loadings, absolute pressures, partial pressures, etc., in the units of */
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366 /* depth pressure that you are diving - either feet of seawater (fsw) or */
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367 /* meters of seawater (msw). This program follows that convention with the */
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368 /* the exception that all VPM calculations are performed in SI units (by */
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369 /* necessity). Accordingly, there are several conversions back and forth */
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370 /* between the diving pressure units and the SI units. */
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371 /* =============================================================================== */
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372 /* =============================================================================== */
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373 /* FUNCTION SUBPROGRAM FOR GAS LOADING CALCULATIONS - ASCENT AND DESCENT */
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374 /* =============================================================================== */
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375
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376
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377
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378 /* =============================================================================== */
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379 /* SUBROUTINE GAS_LOADINGS_ASCENT_DESCENT */
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380 /* Purpose: This subprogram applies the Schreiner equation to update the */
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381 /* gas loadings (partial pressures of helium and nitrogen) in the half-time */
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382 /* compartments due to a linear ascent or descent segment at a constant rate. */
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383 /* =============================================================================== */
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384
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385 static int gas_loadings_ascent_descen(float* helium_pressure,
38
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386 float* nitrogen_pressure,
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387 float starting_depth,
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388 float ending_depth,
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389 float rate,_Bool check_gas_change)
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390 {
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391 short i;
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392 float initial_inspired_n2_pressure,
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393 initial_inspired_he_pressure, nitrogen_rate,
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394 last_run_time,
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395 starting_ambient_pressure,
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396 ending_ambient_pressure;
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397 float initial_helium_pressure[16];
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398 float initial_nitrogen_pressure[16];
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399 float helium_rate;
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400 float fraction_helium_begin;
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401 float fraction_helium_end;
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402 float fraction_nitrogen_begin;
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403 float fraction_nitrogen_end;
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404 float ending_depth_tmp = ending_depth;
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405 float segment_time_tmp = 0;
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406 /* loop */
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407 /* =============================================================================== */
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408 /* CALCULATIONS */
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409 /* =============================================================================== */
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410 segment_time = (ending_depth_tmp - starting_depth) / rate;
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411 last_run_time = run_time;
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412 run_time = last_run_time + segment_time;
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413 do {
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414 ending_depth_tmp = ending_depth;
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415 if (starting_depth > ending_depth && check_gas_change && number_of_changes > 1)
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416 {
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417 for (i = 1; i < number_of_changes; ++i)
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418 {
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419 if (depth_change[i] < starting_depth && depth_change[i] > ending_depth)
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420 {
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421 ending_depth_tmp = depth_change[i];
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422 break;
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423 }
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424 }
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425 for (i = 1; i < number_of_changes; ++i)
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426 {
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427 if (depth_change[i] >= starting_depth)
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428 {
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429 mix_number = mix_change[i];
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430 }
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431 }
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432 }
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433 segment_time_tmp = (ending_depth_tmp - starting_depth) / rate;
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434 ending_ambient_pressure = ending_depth_tmp + barometric_pressure;
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435 starting_ambient_pressure = starting_depth + barometric_pressure;
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436 decom_get_inert_gases( starting_ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
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437 decom_get_inert_gases( ending_ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_end, &fraction_helium_end );
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438
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439 initial_inspired_he_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
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440 initial_inspired_n2_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
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441 //helium_rate = *rate * fraction_helium[mix_number - 1];
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442 helium_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_helium_end - initial_inspired_he_pressure)/segment_time_tmp;
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443 //nitrogen_rate2 = *rate * fraction_nitrogen[mix_number - 1];
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444 nitrogen_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_nitrogen_end - initial_inspired_n2_pressure)/segment_time_tmp;
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445
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446
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447 decom_oxygen_calculate_cns_stage_SchreinerStyle(segment_time_tmp,&pDiveSettings->decogaslist[mix_number],starting_ambient_pressure/10,ending_ambient_pressure/10,&gCNS_VPM);
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448 //if(fabs(nitrogen_rate - nitrogen_rate2) > 0.000001)
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449 //return -2;
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450 for (i = 1; i <= 16; ++i)
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451 {
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452 initial_helium_pressure[i - 1] = helium_pressure[i - 1];
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453 initial_nitrogen_pressure[i - 1] = nitrogen_pressure[i - 1];
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454 helium_pressure[i - 1] =
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455 schreiner_equation__2(&initial_inspired_he_pressure,
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456 &helium_rate,
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457 &segment_time,
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458 &HELIUM_TIME_CONSTANT[i - 1],
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459 &initial_helium_pressure[i - 1]);
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460 nitrogen_pressure[i - 1] =
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461 schreiner_equation__2(&initial_inspired_n2_pressure,
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462 &nitrogen_rate,
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463 &segment_time,
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464 &NITROGEN_TIME_CONSTANT[i - 1],
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465 &initial_nitrogen_pressure[i - 1]);
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466
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467 //nextround???
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468
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469 }
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470 starting_depth = ending_depth_tmp;
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471 } while(ending_depth_tmp > ending_depth);
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472
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473 return 0;
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474 } /* gas_loadings_ascent_descen */
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475
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476 static float last_phase_volume_time[16];
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477 static float n2_pressure_start_of_deco_zone[16];
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478 static float he_pressure_start_of_deco_zone[16];
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479 static float phase_volume_time[16];
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480 static float n2_pressure_start_of_ascent[16];
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481 static float he_pressure_start_of_ascent[16];
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482 static float run_time_start_of_deco_calc;
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483 static float starting_depth;
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484 static float last_run_time;
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485 static float deco_phase_volume_time;
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486 static float run_time_start_of_ascent;
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487 static float rate;
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488 static float step_size;
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489 static _Bool vpm_violates_buehlmann;
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490
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diff changeset
491 static void vpm_calc_deco(void)
38
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parents:
diff changeset
492 {
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493 /* System generated locals */
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heinrichsweikamp
parents:
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494
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parents:
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495 //float deepest_possible_stop_depth;
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496 // altitude_of_dive,
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heinrichsweikamp
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497 short i;
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heinrichsweikamp
parents:
diff changeset
498 int j = 0;
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499
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heinrichsweikamp
parents:
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500 // float rounding_operation;
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heinrichsweikamp
parents:
diff changeset
501
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heinrichsweikamp
parents:
diff changeset
502 /* =============================================================================== */
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heinrichsweikamp
parents:
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503 /* INPUT PARAMETERS TO BE USED FOR STAGED DECOMPRESSION AND SAVE IN ARRAYS. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
504 /* ASSIGN INITAL PARAMETERS TO BE USED AT START OF ASCENT */
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heinrichsweikamp
parents:
diff changeset
505 /* The user has the ability to change mix, ascent rate, and step size in any */
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heinrichsweikamp
parents:
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506 /* combination at any depth during the ascent. */
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heinrichsweikamp
parents:
diff changeset
507 /* =============================================================================== */
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508
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parents:
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509 run_time = ((float)pInput->dive_time_seconds )/ 60;
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heinrichsweikamp
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510 count_critical_volume_iteration = 0;
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heinrichsweikamp
parents:
diff changeset
511 number_of_changes = 1;
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512
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parents:
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513 barometric_pressure = pInput->pressure_surface_bar * 10;
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heinrichsweikamp
parents:
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514 depth_change[0] =(pInput->pressure_ambient_bar - pInput->pressure_surface_bar)* 10;
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heinrichsweikamp
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515 mix_change[0] = 0;
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heinrichsweikamp
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516 rate_change[0 ] = -10;// neu 160215 hw, zuvor: -12;
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517 step_size_change[0] = 3;
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parents:
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518 vpm_violates_buehlmann = false;
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parents:
diff changeset
519
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heinrichsweikamp
parents:
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520 for (i = 1; i < BUEHLMANN_STRUCT_MAX_GASES; i++)
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heinrichsweikamp
parents:
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521 {
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heinrichsweikamp
parents:
diff changeset
522 depth_change[i] = 0;
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523 mix_change[i] = 0;
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heinrichsweikamp
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524 }
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heinrichsweikamp
parents:
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525 j = 0;
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heinrichsweikamp
parents:
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526
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parents:
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527 for (i = 1; i < BUEHLMANN_STRUCT_MAX_GASES; i++)
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heinrichsweikamp
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528 {
830
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
Ideenmodellierer
parents: 305
diff changeset
529 if((pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero >= depth_change[0] + 1)
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
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parents: 305
diff changeset
530 && (pDiveSettings->gas[pDiveSettings->decogaslist[i].GasIdInSettings].note.ub.decocalc))
38
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heinrichsweikamp
parents:
diff changeset
531 continue;
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parents:
diff changeset
532
830
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
Ideenmodellierer
parents: 305
diff changeset
533 if((pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero <= 0)
b7d93ff6b3b2 Added selection if an active gas shall be used for deco calculation or not:
Ideenmodellierer
parents: 305
diff changeset
534 || (pDiveSettings->gas[pDiveSettings->decogaslist[i].GasIdInSettings].note.ub.decocalc == 0))
38
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heinrichsweikamp
parents:
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535 break;
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heinrichsweikamp
parents:
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536
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heinrichsweikamp
parents:
diff changeset
537 j++;
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heinrichsweikamp
parents:
diff changeset
538 number_of_changes ++;
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diff changeset
539 depth_change[j] = pDiveSettings->decogaslist[i].change_during_ascent_depth_meter_otherwise_zero ;
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heinrichsweikamp
parents:
diff changeset
540 mix_change[j] = i;
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parents:
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541 rate_change[j] = -10;// neu 160215 hw, zuvor: -12;
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heinrichsweikamp
parents:
diff changeset
542 step_size_change[j] = 3;
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heinrichsweikamp
parents:
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543 }
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heinrichsweikamp
parents:
diff changeset
544
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
545 starting_depth = depth_change[0] ;
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heinrichsweikamp
parents:
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546 mix_number = mix_change[0] ;
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heinrichsweikamp
parents:
diff changeset
547 rate = rate_change[0];
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heinrichsweikamp
parents:
diff changeset
548 step_size = step_size_change[0];
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heinrichsweikamp
parents:
diff changeset
549
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
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550 for (i = 0; i < 16; ++i) {
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heinrichsweikamp
parents:
diff changeset
551 he_pressure_start_of_ascent[i ] = helium_pressure[i];
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heinrichsweikamp
parents:
diff changeset
552 n2_pressure_start_of_ascent[i] = nitrogen_pressure[i];
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heinrichsweikamp
parents:
diff changeset
553 }
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parents:
diff changeset
554 run_time_start_of_ascent = run_time;
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parents:
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555 if(starting_depth <= depth_start_of_deco_zone && vpm_calc_what == DECOSTOPS)
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heinrichsweikamp
parents:
diff changeset
556 {
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heinrichsweikamp
parents:
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557 pVpm->deco_zone_reached = true;
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heinrichsweikamp
parents:
diff changeset
558 depth_start_of_deco_calc = starting_depth;
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heinrichsweikamp
parents:
diff changeset
559 critical_volume_algorithm_off = true;
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parents:
diff changeset
560 }
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heinrichsweikamp
parents:
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561 else
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heinrichsweikamp
parents:
diff changeset
562 {
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parents:
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563 //if(deco_zone_reached)
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heinrichsweikamp
parents:
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564 //{
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heinrichsweikamp
parents:
diff changeset
565 pVpm->deco_zone_reached = false;
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heinrichsweikamp
parents:
diff changeset
566 critical_volume_algorithm_off = false;
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parents:
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567 //max_first_stop_depth = 0;
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heinrichsweikamp
parents:
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568 //max_first_stop_depth_save = 0;
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heinrichsweikamp
parents:
diff changeset
569 //}
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heinrichsweikamp
parents:
diff changeset
570 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
571 /* BEGIN PROCESS OF ASCENT AND DECOMPRESSION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
572 /* First, calculate the regeneration of critical radii that takes place over */
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heinrichsweikamp
parents:
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573 /* the dive time. The regeneration time constant has a time scale of weeks */
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heinrichsweikamp
parents:
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574 /* so this will have very little impact on dives of normal length, but will */
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heinrichsweikamp
parents:
diff changeset
575 /* have major impact for saturation dives. */
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heinrichsweikamp
parents:
diff changeset
576 /* =============================================================================== */
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577
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heinrichsweikamp
parents:
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578 nuclear_regeneration(&run_time);
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heinrichsweikamp
parents:
diff changeset
579
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heinrichsweikamp
parents:
diff changeset
580 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
581 /* CALCULATE INITIAL ALLOWABLE GRADIENTS FOR ASCENT */
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heinrichsweikamp
parents:
diff changeset
582 /* This is based on the maximum effective crushing pressure on critical radii */
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heinrichsweikamp
parents:
diff changeset
583 /* in each compartment achieved during the dive profile. */
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heinrichsweikamp
parents:
diff changeset
584 /* =============================================================================== */
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heinrichsweikamp
parents:
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585
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heinrichsweikamp
parents:
diff changeset
586 calc_initial_allowable_gradient();
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heinrichsweikamp
parents:
diff changeset
587
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heinrichsweikamp
parents:
diff changeset
588 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
589 /* SAVE VARIABLES AT START OF ASCENT (END OF BOTTOM TIME) SINCE THESE WILL */
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heinrichsweikamp
parents:
diff changeset
590 /* BE USED LATER TO COMPUTE THE FINAL ASCENT PROFILE THAT IS WRITTEN TO THE */
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heinrichsweikamp
parents:
diff changeset
591 /* OUTPUT FILE. */
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heinrichsweikamp
parents:
diff changeset
592 /* The VPM uses an iterative process to compute decompression schedules so */
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heinrichsweikamp
parents:
diff changeset
593 /* there will be more than one pass through the decompression loop. */
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heinrichsweikamp
parents:
diff changeset
594 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
595
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heinrichsweikamp
parents:
diff changeset
596 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
597 /* CALCULATE THE DEPTH WHERE THE DECOMPRESSION ZONE BEGINS FOR THIS PROFILE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
598 /* BASED ON THE INITIAL ASCENT PARAMETERS AND WRITE THE DEEPEST POSSIBLE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
599 /* DECOMPRESSION STOP DEPTH TO THE OUTPUT FILE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
600 /* Knowing where the decompression zone starts is very important. Below */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
601 /* that depth there is no possibility for bubble formation because there */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
602 /* will be no supersaturation gradients. Deco stops should never start */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
603 /* below the deco zone. The deepest possible stop deco stop depth is */
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heinrichsweikamp
parents:
diff changeset
604 /* defined as the next "standard" stop depth above the point where the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
605 /* leading compartment enters the deco zone. Thus, the program will not */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
606 /* base this calculation on step sizes larger than 10 fsw or 3 msw. The */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
607 /* deepest possible stop depth is not used in the program, per se, rather */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
608 /* it is information to tell the diver where to start putting on the brakes */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
609 /* during ascent. This should be prominently displayed by any deco program. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
610 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
611
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heinrichsweikamp
parents:
diff changeset
612 calc_start_of_deco_zone(&starting_depth, &rate, &depth_start_of_deco_zone);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
613 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
614 /* TEMPORARILY ASCEND PROFILE TO THE START OF THE DECOMPRESSION ZONE, SAVE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
615 /* VARIABLES AT THIS POINT, AND INITIALIZE VARIABLES FOR CRITICAL VOLUME LOOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
616 /* The iterative process of the VPM Critical Volume Algorithm will operate */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
617 /* only in the decompression zone since it deals with excess gas volume */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
618 /* released as a result of supersaturation gradients (not possible below the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
619 /* decompression zone). */
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heinrichsweikamp
parents:
diff changeset
620 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
621 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth, depth_start_of_deco_zone, rate, true);
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heinrichsweikamp
parents:
diff changeset
622
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heinrichsweikamp
parents:
diff changeset
623 run_time_start_of_deco_zone = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
624 depth_start_of_deco_calc = depth_start_of_deco_zone;
5f11787b4f42 include in ostc4 repository
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parents:
diff changeset
625
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parents:
diff changeset
626 for (i = 0; i < 16; ++i)
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parents:
diff changeset
627 {
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parents:
diff changeset
628 pVpm->max_actual_gradient[i] = 0.;
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heinrichsweikamp
parents:
diff changeset
629 }
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diff changeset
630 }
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heinrichsweikamp
parents:
diff changeset
631
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heinrichsweikamp
parents:
diff changeset
632 for (i = 0; i < 16; ++i)
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parents:
diff changeset
633 {
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diff changeset
634 surface_phase_volume_time[i] = 0.;
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heinrichsweikamp
parents:
diff changeset
635 last_phase_volume_time[i] = 0.;
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heinrichsweikamp
parents:
diff changeset
636 he_pressure_start_of_deco_zone[i] = helium_pressure[i];
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heinrichsweikamp
parents:
diff changeset
637 n2_pressure_start_of_deco_zone[i] = nitrogen_pressure[i];
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heinrichsweikamp
parents:
diff changeset
638 //pVpm->max_actual_gradient[i] = 0.;
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parents:
diff changeset
639 }
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diff changeset
640 run_time_start_of_deco_calc = run_time;
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diff changeset
641 }
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heinrichsweikamp
parents:
diff changeset
642 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
643 /* START OF CRITICAL VOLUME LOOP */
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heinrichsweikamp
parents:
diff changeset
644 /* This loop operates between Lines 50 and 100. If the Critical Volume */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
645 /* Algorithm is toggled "off" in the program settings, there will only be */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
646 /* one pass through this loop. Otherwise, there will be two or more passes */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
647 /* through this loop until the deco schedule is "converged" - that is when a */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
648 /* comparison between the phase volume time of the present iteration and the */
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heinrichsweikamp
parents:
diff changeset
649 /* last iteration is less than or equal to one minute. This implies that */
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heinrichsweikamp
parents:
diff changeset
650 /* the volume of released gas in the most recent iteration differs from the */
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heinrichsweikamp
parents:
diff changeset
651 /* "critical" volume limit by an acceptably small amount. The critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
652 /* volume limit is set by the Critical Volume Parameter Lambda in the program */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
653 /* settings (default setting is 7500 fsw-min with adjustability range from */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
654 /* from 6500 to 8300 fsw-min according to Bruce Wienke). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
655 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
656 /* L50: */
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heinrichsweikamp
parents:
diff changeset
657
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
658 static float deco_stop_depth;
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parents: 247
diff changeset
659 static int vpm_calc_critcal_volume(_Bool begin,
38
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diff changeset
660 _Bool calc_nulltime)
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heinrichsweikamp
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diff changeset
661 { /* loop will run continuous there is an exit stateme */
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heinrichsweikamp
parents:
diff changeset
662
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
663 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
664
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
665 float rounding_operation2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
666 //float ending_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
667 float deco_ceiling_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
668
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
669 //float deco_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
670 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
671 _Bool first_stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
672 int dp = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
673 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
674 float tissue_N2_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
675 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
676 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
677 /* CALCULATE CURRENT DECO CEILING BASED ON ALLOWABLE SUPERSATURATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
678 /* GRADIENTS AND SET FIRST DECO STOP. CHECK TO MAKE SURE THAT SELECTED STEP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
679 /* SIZE WILL NOT ROUND UP FIRST STOP TO A DEPTH THAT IS BELOW THE DECO ZONE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
680 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
681 if(begin)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
682 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
683 if(depth_start_of_deco_calc < max_first_stop_depth )
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
684 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
685 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
686 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
687 BOYLES_LAW_COMPENSATION(&max_first_stop_depth, &depth_start_of_deco_calc, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
688 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
689 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
690 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
691 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
692 calc_deco_ceiling(&deco_ceiling_depth, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
693
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
694
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
695 if (deco_ceiling_depth <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
696 deco_stop_depth = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
697 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
698 rounding_operation2 = deco_ceiling_depth / step_size + ( float)0.5f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
699 deco_stop_depth = r_nint(&rounding_operation2) * step_size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
700 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
701
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
702 // buehlmann safety
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
703 if(buehlmannSafety)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
704 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
705 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
706 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
707 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
708 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
709 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
710
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
711 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_stop_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
712 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
713
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
714 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
715 do {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
716 deco_stop_depth += 3.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
717 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_stop_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
718 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
719 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
720
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
721 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
722 /* PERFORM A SEPARATE "PROJECTED ASCENT" OUTSIDE OF THE MAIN PROGRAM TO MAKE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
723 /* SURE THAT AN INCREASE IN GAS LOADINGS DURING ASCENT TO THE FIRST STOP WILL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
724 /* NOT CAUSE A VIOLATION OF THE DECO CEILING. IF SO, ADJUST THE FIRST STOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
725 /* DEEPER BASED ON STEP SIZE UNTIL A SAFE ASCENT CAN BE MADE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
726 /* Note: this situation is a possibility when ascending from extremely deep */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
727 /* dives or due to an unusual gas mix selection. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
728 /* CHECK AGAIN TO MAKE SURE THAT ADJUSTED FIRST STOP WILL NOT BE BELOW THE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
729 /* DECO ZONE. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
730 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
731 if (deco_stop_depth < depth_start_of_deco_calc)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
732 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
733 projected_ascent(&depth_start_of_deco_calc, &rate, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
734 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
735
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
736 /*if (deco_stop_depth > depth_start_of_deco_zone) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
737 printf("\t\n");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
738 printf(fmt_905);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
739 printf(fmt_900);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
740 printf("\nPROGRAM TERMINATED\n");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
741 exit(1);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
742 }*/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
743
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
744 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
745 /* HANDLE THE SPECIAL CASE WHEN NO DECO STOPS ARE REQUIRED - ASCENT CAN BE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
746 /* MADE DIRECTLY TO THE SURFACE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
747 /* Write ascent data to output file and exit the Critical Volume Loop. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
748 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
749
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
750 if (deco_stop_depth == 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
751 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
752 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
753 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
754 return CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
755 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
756 if(pVpm->deco_zone_reached)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
757 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
758 for(dp = 0;dp < DECOINFO_STRUCT_MAX_STOPS;dp++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
759 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
760 pDecoInfo->output_stop_length_seconds[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
761 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
762 pDecoInfo->output_ndl_seconds = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
763 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
764
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
765 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
766 /* exit the critical volume l */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
767 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
768
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
769 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
770 /* ASSIGN VARIABLES FOR ASCENT FROM START OF DECO ZONE TO FIRST STOP. SAVE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
771 /* FIRST STOP DEPTH FOR LATER USE WHEN COMPUTING THE FINAL ASCENT PROFILE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
772 /* =============================================================================== */
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
773 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
774 starting_depth = depth_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
775 first_stop_depth = deco_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
776 first_stop = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
777 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
778 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
779 /* DECO STOP LOOP BLOCK WITHIN CRITICAL VOLUME LOOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
780 /* This loop computes a decompression schedule to the surface during each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
781 /* iteration of the critical volume loop. No output is written from this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
782 /* loop, rather it computes a schedule from which the in-water portion of the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
783 /* total phase volume time (Deco_Phase_Volume_Time) can be extracted. Also, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
784 /* the gas loadings computed at the end of this loop are used the subroutine */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
785 /* which computes the out-of-water portion of the total phase volume time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
786 /* (Surface_Phase_Volume_Time) for that schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
787
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
788 /* Note that exit is made from the loop after last ascent is made to a deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
789 /* stop depth that is less than or equal to zero. A final deco stop less */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
790 /* than zero can happen when the user makes an odd step size change during */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
791 /* ascent - such as specifying a 5 msw step size change at the 3 msw stop! */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
792 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
793
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
794 while(true) /* loop will run continuous there is an break statement */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
795 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
796 if(starting_depth > deco_stop_depth )
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
797 gas_loadings_ascent_descen(helium_pressure, nitrogen_pressure, starting_depth, deco_stop_depth, rate,first_stop);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
798
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
799 first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
800 if (deco_stop_depth <= 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
801 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
802 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
803 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
804 if (number_of_changes > 1)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
805 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
806 int i1 = number_of_changes;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
807 for (i = 2; i <= i1; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
808 if (depth_change[i - 1] >= deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
809 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
810 mix_number = mix_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
811 rate = rate_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
812 step_size = step_size_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
813 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
814 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
815 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
816 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
817 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
818 float fist_stop_depth2 = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
819 BOYLES_LAW_COMPENSATION(&fist_stop_depth2, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
820 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
821 decompression_stop(&deco_stop_depth, &step_size, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
822 starting_depth = deco_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
823
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
824 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
825 deco_stop_depth = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
826 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
827 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
828 deco_stop_depth = deco_stop_depth - step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
829 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
830 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
831
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
832 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
833 //if(count > 14)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
834 //return CALC_CRITICAL2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
835 /* L60: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
836 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
837
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
838 return vpm_check_converged(calc_nulltime);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
839 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
840 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
841 /* COMPUTE TOTAL PHASE VOLUME TIME AND MAKE CRITICAL VOLUME COMPARISON */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
842 /* The deco phase volume time is computed from the run time. The surface */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
843 /* phase volume time is computed in a subroutine based on the surfacing gas */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
844 /* loadings from previous deco loop block. Next the total phase volume time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
845 /* (in-water + surface) for each compartment is compared against the previous */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
846 /* total phase volume time. The schedule is converged when the difference is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
847 /* less than or equal to 1 minute in any one of the 16 compartments. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
848
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
849 /* Note: the "phase volume time" is somewhat of a mathematical concept. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
850 /* It is the time divided out of a total integration of supersaturation */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
851 /* gradient x time (in-water and surface). This integration is multiplied */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
852 /* by the excess bubble number to represent the amount of free-gas released */
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heinrichsweikamp
parents:
diff changeset
853 /* as a result of allowing a certain number of excess bubbles to form. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
854 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
855 /* end of deco stop loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
856
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
857 static int vpm_check_converged(_Bool calc_nulltime)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
858 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
859
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
860 short i;
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heinrichsweikamp
parents:
diff changeset
861 float critical_volume_comparison;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
862 float r1;
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heinrichsweikamp
parents:
diff changeset
863 _Bool schedule_converged = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
864
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
865
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heinrichsweikamp
parents:
diff changeset
866 deco_phase_volume_time = run_time - run_time_start_of_deco_zone;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
867 calc_surface_phase_volume_time();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
868
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heinrichsweikamp
parents:
diff changeset
869 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
870 {
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heinrichsweikamp
parents:
diff changeset
871 phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
872 deco_phase_volume_time + surface_phase_volume_time[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
873 critical_volume_comparison = (r1 = phase_volume_time[i - 1] - last_phase_volume_time[i - 1], fabs(r1));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
874
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heinrichsweikamp
parents:
diff changeset
875 if (critical_volume_comparison <= 1.0f)
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heinrichsweikamp
parents:
diff changeset
876 {
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heinrichsweikamp
parents:
diff changeset
877 schedule_converged = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
878 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
879 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
880
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
881 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
882 /* CRITICAL VOLUME DECISION TREE BETWEEN LINES 70 AND 99 */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
883 /* There are two options here. If the Critical Volume Agorithm setting is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
884 /* "on" and the schedule is converged, or the Critical Volume Algorithm */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
885 /* setting was "off" in the first place, the program will re-assign variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
886 /* to their values at the start of ascent (end of bottom time) and process */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
887 /* a complete decompression schedule once again using all the same ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
888 /* parameters and first stop depth. This decompression schedule will match */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
889 /* the last iteration of the Critical Volume Loop and the program will write */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
890 /* the final deco schedule to the output file. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
891
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
892 /* Note: if the Critical Volume Agorithm setting was "off", the final deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
893 /* schedule will be based on "Initial Allowable Supersaturation Gradients." */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
894 /* If it was "on", the final schedule will be based on "Adjusted Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
895 /* Supersaturation Gradients" (gradients that are "relaxed" as a result of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
896 /* the Critical Volume Algorithm). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
897
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
898 /* If the Critical Volume Agorithm setting is "on" and the schedule is not */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
899 /* converged, the program will re-assign variables to their values at the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
900 /* start of the deco zone and process another trial decompression schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
901 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
902 /* L70: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
903 //Not more than 4 iteration allowed
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
904 count_critical_volume_iteration++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
905 if(count_critical_volume_iteration > 4)
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heinrichsweikamp
parents:
diff changeset
906 {
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heinrichsweikamp
parents:
diff changeset
907 //return CALC_FINAL_DECO;
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heinrichsweikamp
parents:
diff changeset
908 if(calc_nulltime)
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heinrichsweikamp
parents:
diff changeset
909 return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
910 else
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heinrichsweikamp
parents:
diff changeset
911 return vpm_calc_final_deco(true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
912 }
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heinrichsweikamp
parents:
diff changeset
913 if (schedule_converged || critical_volume_algorithm_off)
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heinrichsweikamp
parents:
diff changeset
914 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
915
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heinrichsweikamp
parents:
diff changeset
916 //return CALC_FINAL_DECO;
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heinrichsweikamp
parents:
diff changeset
917 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
918 return CALC_FINAL_DECO;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
919 else
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heinrichsweikamp
parents:
diff changeset
920 return vpm_calc_final_deco(true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
921 /* final deco schedule */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
922 /* exit critical volume l */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
923
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
924 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
925 /* IF SCHEDULE NOT CONVERGED, COMPUTE RELAXED ALLOWABLE SUPERSATURATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
926 /* GRADIENTS WITH VPM CRITICAL VOLUME ALGORITHM AND PROCESS ANOTHER */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
927 /* ITERATION OF THE CRITICAL VOLUME LOOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
928 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
929
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heinrichsweikamp
parents:
diff changeset
930 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
931 critical_volume(&deco_phase_volume_time);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
932 deco_phase_volume_time = 0.;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
933 run_time = run_time_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
934 starting_depth = depth_start_of_deco_calc;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
935 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
936 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
937 step_size = step_size_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
938 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
939 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
940 last_phase_volume_time[i - 1] = phase_volume_time[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
941 helium_pressure[i - 1] = he_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
942 nitrogen_pressure[i - 1] = n2_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
943 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
944 if(calc_nulltime)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
945 return CALC_CRITICAL;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
946 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
947 return vpm_calc_critcal_volume(true, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
948 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
949 /* end of critical volume decision */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
950 /* L100: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
951 // }/* end of critical vol loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
952 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
953
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
954 static void vpm_calc_deco_ceiling(void)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
955 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
956
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
957 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
958 // hw 1601209 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
959 // hw 1601209 float stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
960 // hw 1601209 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
961 //static int dp_max;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
962 //static float surfacetime;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
963 // _Bool first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
964 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
965 float tissue_N2_saturation[16];
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
966 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
967 //max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
968
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
969 /** CALC DECO Ceiling ******************************************************************/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
970 /** Not when Future stops */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
971 if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
972 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
973
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
974 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
975 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
976 helium_pressure[i - 1] = he_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
977 nitrogen_pressure[i - 1] = n2_pressure_start_of_deco_zone[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
978 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
979 run_time = run_time_start_of_ascent;// run_time_start_of_ascent;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
980 starting_depth = depth_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
981 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
982 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
983 //gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth, depth_start_of_deco_calc, rate, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
984
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
985 float deco_ceiling_depth = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
986 if(depth_start_of_deco_calc > max_deco_ceiling_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
987 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
988 calc_deco_ceiling(&deco_ceiling_depth, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
989 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
990 if(buehlmannSafety)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
991 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
992 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
993 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
994 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
995 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
996 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
997
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
998 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
999 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1000 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1001 do {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1002 deco_ceiling_depth += 0.1f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1003 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1004 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1005 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1006
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1007 if (deco_ceiling_depth < depth_start_of_deco_calc)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1008 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1009 projected_ascent(&depth_start_of_deco_calc, &rate, &deco_ceiling_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1010 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1011
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1012 max_deco_ceiling_depth = fmaxf(max_deco_ceiling_depth,deco_ceiling_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1013
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1014 if(depth_start_of_deco_calc > deco_ceiling_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1015 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1016 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, depth_start_of_deco_calc,deco_ceiling_depth, rate, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1017 //surfacetime += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1018 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1019
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1020 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1021 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1022 BOYLES_LAW_COMPENSATION(&max_deco_ceiling_depth, &deco_ceiling_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1023 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1024 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1025
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1026 // buehlmann safety
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1027 if(vpm_violates_buehlmann)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1028 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1029 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1030 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1031 tissue_He_saturation[i] = helium_pressure[i] / 10.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1032 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1033 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1034
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1035 if(!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1036 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1037 vpm_violates_buehlmann = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1038 do {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1039 deco_ceiling_depth += 0.1f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1040 } while (!decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (deco_ceiling_depth / 10.0f) + pInput->pressure_surface_bar));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1041 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1042 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1043 // output_ceiling_meter
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1044 if(deco_ceiling_depth > first_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1045 deco_ceiling_depth = first_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1046 pDecoInfo->output_ceiling_meter = deco_ceiling_depth ;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1047 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1048 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1049 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1050 pDecoInfo->output_ceiling_meter = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1051 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1052
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1053 // fix hw 160627
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1054 if(pDecoInfo->output_ceiling_meter < 0.0)
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1055 pDecoInfo->output_ceiling_meter = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1056
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1057 /*** End CALC ceiling ***************************************************/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1058 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1059
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1060
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1061 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1062 /* DECO STOP LOOP BLOCK FOR FINAL DECOMPRESSION SCHEDULE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1063 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1064
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1065 static int vpm_calc_final_deco(_Bool begin)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1066 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1067 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1068 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1069 float stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1070 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1071 static int dp_max;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1072 static float surfacetime;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1073 _Bool first_stop = false;
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1074 float roundingValue = 0.0;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1075
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1076 uint16_t stop_time_seconds;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1077
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1078 max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1079 if(begin)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1080 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1081 gCNS_VPM = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1082 dp_max = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1083 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1084 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1085 helium_pressure[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1086 he_pressure_start_of_ascent[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1087 nitrogen_pressure[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1088 n2_pressure_start_of_ascent[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1089 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1090 run_time = run_time_start_of_ascent;// run_time_start_of_ascent;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1091 starting_depth = depth_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1092 mix_number = mix_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1093 rate = rate_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1094 step_size = step_size_change[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1095 deco_stop_depth = first_stop_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1096 max_first_stop_depth = fmaxf(first_stop_depth,max_first_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1097 last_run_time = 0.;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1098
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1099
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1100
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1101 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1102 /* DECO STOP LOOP BLOCK FOR FINAL DECOMPRESSION SCHEDULE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1103 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1104 surfacetime = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1105 first_stop = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1106 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1107
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1108 while(true) /* loop will run continuous until there is an break statement */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1109 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1110 if(starting_depth > deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1111 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1112 gas_loadings_ascent_descen(helium_pressure,nitrogen_pressure, starting_depth,deco_stop_depth, rate, first_stop);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1113 surfacetime += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1114 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1115
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1116 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1117 /* DURING FINAL DECOMPRESSION SCHEDULE PROCESS, COMPUTE MAXIMUM ACTUAL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1118 /* SUPERSATURATION GRADIENT RESULTING IN EACH COMPARTMENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1119 /* If there is a repetitive dive, this will be used later in the VPM */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1120 /* Repetitive Algorithm to adjust the values for critical radii. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1121 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1122 if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1123 calc_max_actual_gradient(&deco_stop_depth);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1124
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1125 if (deco_stop_depth <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1126 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1127 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1128 if (number_of_changes > 1)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1129 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1130 int i1 = number_of_changes;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1131 for (i = 2; i <= i1; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1132 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1133 if (depth_change[i - 1] >= deco_stop_depth)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1134 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1135 mix_number = mix_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1136 rate = rate_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1137 step_size = step_size_change[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1138 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1139 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1140 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1141
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1142 if(first_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1143 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1144 run_time_first_stop = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1145 first_stop = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1146 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1147 if(vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1148 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1149 BOYLES_LAW_COMPENSATION(&max_first_stop_depth, &deco_stop_depth, &step_size);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1150 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1151 decompression_stop(&deco_stop_depth, &step_size, true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1152
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1153 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1154 /* This next bit justs rounds up the stop time at the first stop to be in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1155 /* whole increments of the minimum stop time (to make for a nice deco table). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1156 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1157
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1158 if (last_run_time == 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1159 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1160 r1 = segment_time / minimum_deco_stop_time + 0.5f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1161 stop_time = r_int(&r1) * minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1162 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1163 stop_time = run_time - last_run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1164 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1165 stop_time = segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1166 surfacetime += stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1167 if((vpm_calc_what == DECOSTOPS) || (vpm_calc_what == BAILOUTSTOPS))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1168 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1169 int dp = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1170 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1171 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1172 dp = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1173 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1174 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1175 {
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1176 roundingValue = (deco_stop_depth - (pDiveSettings->input_second_to_last_stop_depth_bar * 10.0)) / step_size;
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1177 dp = 1 + r_nint(&roundingValue);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1178 }
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1179
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1180 //dp_max = (int)fmaxf(dp_max,dp);
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1181 if(dp > dp_max)
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1182 {
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1183 dp_max = dp;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1184 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1185 if(dp < DECOINFO_STRUCT_MAX_STOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1186 {
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
1187 stop_time_seconds = (uint16_t)(fminf((999.9 * 60.0), (stop_time *60.0)));
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1188 //
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1189
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1190 //if(vpm_calc_what == DECOSTOPS)
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1191 pDecoInfo->output_stop_length_seconds[dp] = stop_time_seconds;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1192 //else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1193 //decostop_bailout[dp] = (unsigned short)stop_time_seconds;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1194 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1195 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1196
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1197
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1198 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1199 /* DURING FINAL DECOMPRESSION SCHEDULE, IF MINIMUM STOP TIME PARAMETER IS A */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1200 /* WHOLE NUMBER (i.e. 1 minute) THEN WRITE DECO SCHEDULE USING short */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1201 /* NUMBERS (looks nicer). OTHERWISE, USE DECIMAL NUMBERS. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1202 /* Note: per the request of a noted exploration diver(!), program now allows */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1203 /* a minimum stop time of less than one minute so that total ascent time can */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1204 /* be minimized on very long dives. In fact, with step size set at 1 fsw or */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1205 /* 0.2 msw and minimum stop time set at 0.1 minute (6 seconds), a near */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1206 /* continuous decompression schedule can be computed. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1207 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1208
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1209 starting_depth = deco_stop_depth;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1210 if(deco_stop_depth == (float)pDiveSettings->last_stop_depth_bar * 10)
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1211 deco_stop_depth = 0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1212 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1213 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1214 deco_stop_depth = deco_stop_depth - step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
1215 deco_stop_depth = fmaxf(deco_stop_depth,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1216 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1217
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1218 last_run_time = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1219 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1220 //if(count > 14)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1221 //return CALC_FINAL_DECO2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1222 /* L80: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1223 } /* for final deco sche */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1224
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1225 if( (vpm_calc_what == DECOSTOPS) || (vpm_calc_what == BAILOUTSTOPS))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1226 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1227 for(int dp = dp_max +1;dp < DECOINFO_STRUCT_MAX_STOPS;dp++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1228 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1229 //if(vpm_calc_what == DECOSTOPS)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1230 pDecoInfo->output_stop_length_seconds[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1231 //else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1232 //decostop_bailout[dp] = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1233 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1234 }
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1235 pDecoInfo->output_time_to_surface_seconds = (int)(surfacetime * 60.0);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1236 pDecoInfo->output_ndl_seconds = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1237
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1238 vpm_calc_deco_ceiling();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1239 /* end of deco stop lo */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1240 return CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1241 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1242
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1243 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1244 /* SUBROUTINE NUCLEAR_REGENERATION */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1245 /* Purpose: This subprogram calculates the regeneration of VPM critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1246 /* radii that takes place over the dive time. The regeneration time constant */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1247 /* has a time scale of weeks so this will have very little impact on dives of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1248 /* normal length, but will have a major impact for saturation dives. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1249 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1250
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1251 static int nuclear_regeneration(float *dive_time)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1252 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1253 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1254 float crush_pressure_adjust_ratio_he,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1255 ending_radius_n2,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1256 ending_radius_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1257 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1258 float crushing_pressure_pascals_n2,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1259 crushing_pressure_pascals_he,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1260 adj_crush_pressure_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1261 adj_crush_pressure_he_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1262 crush_pressure_adjust_ratio_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1263
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1264 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1265 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1266 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1267 /* First convert the maximum crushing pressure obtained for each compartment */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1268 /* to Pascals. Next, compute the ending radius for helium and nitrogen */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1269 /* critical nuclei in each compartment. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1270 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1271
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1272 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1273 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1274 crushing_pressure_pascals_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1275 pVpm->max_crushing_pressure_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1276 crushing_pressure_pascals_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1277 pVpm->max_crushing_pressure_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1278 ending_radius_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1279 1.0f / (crushing_pressure_pascals_he /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1280 ((SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) * 2.0f) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1281 1.0f / pVpm->adjusted_critical_radius_he[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1282 ending_radius_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1283 1.0f / (crushing_pressure_pascals_n2 /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1284 ((SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) * 2.0f) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1285 1.0f / pVpm->adjusted_critical_radius_n2[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1286
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1287 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1288 /* A "regenerated" radius for each nucleus is now calculated based on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1289 /* regeneration time constant. This means that after application of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1290 /* crushing pressure and reduction in radius, a nucleus will slowly grow */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1291 /* back to its original initial radius over a period of time. This */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1292 /* phenomenon is probabilistic in nature and depends on absolute temperature. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1293 /* It is independent of crushing pressure. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1294 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1295
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1296 regenerated_radius_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1297 pVpm->adjusted_critical_radius_he[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1298 (ending_radius_he - pVpm->adjusted_critical_radius_he[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1299 expf(-(*dive_time) / REGENERATION_TIME_CONSTANT);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1300 regenerated_radius_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1301 pVpm->adjusted_critical_radius_n2[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1302 (ending_radius_n2 - pVpm->adjusted_critical_radius_n2[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1303 expf(-(*dive_time) / REGENERATION_TIME_CONSTANT);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1304
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1305 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1306 /* In order to preserve reference back to the initial critical radii after */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1307 /* regeneration, an "adjusted crushing pressure" for the nuclei in each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1308 /* compartment must be computed. In other words, this is the value of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1309 /* crushing pressure that would have reduced the original nucleus to the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1310 /* to the present radius had regeneration not taken place. The ratio */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1311 /* for adjusting crushing pressure is obtained from algebraic manipulation */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1312 /* of the standard VPM equations. The adjusted crushing pressure, in lieu */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1313 /* of the original crushing pressure, is then applied in the VPM Critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1314 /* Volume Algorithm and the VPM Repetitive Algorithm. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1315 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1316
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1317 crush_pressure_adjust_ratio_he =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1318 ending_radius_he * (pVpm->adjusted_critical_radius_he[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1319 regenerated_radius_he[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1320 (regenerated_radius_he[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1321 (pVpm->adjusted_critical_radius_he[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1322 ending_radius_he));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1323 crush_pressure_adjust_ratio_n2 =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1324 ending_radius_n2 * (pVpm->adjusted_critical_radius_n2[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1325 regenerated_radius_n2[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1326 (regenerated_radius_n2[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1327 (pVpm->adjusted_critical_radius_n2[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1328 ending_radius_n2));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1329 adj_crush_pressure_he_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1330 crushing_pressure_pascals_he * crush_pressure_adjust_ratio_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1331 adj_crush_pressure_n2_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1332 crushing_pressure_pascals_n2 * crush_pressure_adjust_ratio_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1333 pVpm->adjusted_crushing_pressure_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1334 adj_crush_pressure_he_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1335 pVpm->adjusted_crushing_pressure_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1336 adj_crush_pressure_n2_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1337 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1338 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1339 } /* nuclear_regeneration */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1340
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1341 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1342 /* SUBROUTINE CALC_INITIAL_ALLOWABLE_GRADIENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1343 /* Purpose: This subprogram calculates the initial allowable gradients for */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1344 /* helium and nitrogren in each compartment. These are the gradients that */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1345 /* will be used to set the deco ceiling on the first pass through the deco */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1346 /* loop. If the Critical Volume Algorithm is set to "off", then these */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1347 /* gradients will determine the final deco schedule. Otherwise, if the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1348 /* Critical Volume Algorithm is set to "on", these gradients will be further */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1349 /* "relaxed" by the Critical Volume Algorithm subroutine. The initial */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1350 /* allowable gradients are referred to as "PssMin" in the papers by Yount */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1351 /* and colleauges, i.e., the minimum supersaturation pressure gradients */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1352 /* that will probe bubble formation in the VPM nuclei that started with the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1353 /* designated minimum initial radius (critical radius). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1354
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1355 /* The initial allowable gradients are computed directly from the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1356 /* "regenerated" radii after the Nuclear Regeneration subroutine. These */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1357 /* gradients are tracked separately for helium and nitrogen. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1358 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1359
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1360 static int calc_initial_allowable_gradient()
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1361 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1362 float initial_allowable_grad_n2_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1363 initial_allowable_grad_he_pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1364 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1365
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1366 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1367 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1368 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1369 /* The initial allowable gradients are computed in Pascals and then converted */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1370 /* to the diving pressure units. Two different sets of arrays are used to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1371 /* save the calculations - Initial Allowable Gradients and Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1372 /* Gradients. The Allowable Gradients are assigned the values from Initial */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1373 /* Allowable Gradients however the Allowable Gradients can be changed later */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1374 /* by the Critical Volume subroutine. The values for the Initial Allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1375 /* Gradients are saved in a global array for later use by both the Critical */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1376 /* Volume subroutine and the VPM Repetitive Algorithm subroutine. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1377 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1378
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1379 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1380 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1381 initial_allowable_grad_n2_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1382 SURFACE_TENSION_GAMMA * 2.0f *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1383 (SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1384 (regenerated_radius_n2[i - 1] * SKIN_COMPRESSION_GAMMAC);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1385
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1386 initial_allowable_grad_he_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1387 SURFACE_TENSION_GAMMA * 2.0f *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1388 (SKIN_COMPRESSION_GAMMAC - SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1389 (regenerated_radius_he[i - 1] * SKIN_COMPRESSION_GAMMAC);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1390
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1391 pVpm->initial_allowable_gradient_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1392 initial_allowable_grad_n2_pa / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1393
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1394 pVpm->initial_allowable_gradient_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1395 initial_allowable_grad_he_pa / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1396
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1397 allowable_gradient_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1398 pVpm->initial_allowable_gradient_he[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1399
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1400 allowable_gradient_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1401 pVpm->initial_allowable_gradient_n2[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1402 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1403 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1404 } /* calc_initial_allowable_gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1405
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1406 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1407 /* SUBROUTINE CALC_DECO_CEILING */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1408 /* Purpose: This subprogram calculates the deco ceiling (the safe ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1409 /* depth) in each compartment, based on the allowable gradients, and then */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1410 /* finds the deepest deco ceiling across all compartments. This deepest */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1411 /* value (Deco Ceiling Depth) is then used by the Decompression Stop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1412 /* subroutine to determine the actual deco schedule. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1413 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1414
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1415 static int calc_deco_ceiling(float *deco_ceiling_depth,_Bool fallowable)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1416 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1417 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1418 float r1, r2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1419 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1420 float weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1421 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1422 float compartment_deco_ceiling[16],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1423 gas_loading,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1424 tolerated_ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1425 float gradient_he, gradient_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1426
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1427 if(!vpm_b)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1428 fallowable = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1429 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1430 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1431 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1432 /* Since there are two sets of allowable gradients being tracked, one for */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1433 /* helium and one for nitrogen, a "weighted allowable gradient" must be */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1434 /* computed each time based on the proportions of helium and nitrogen in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1435 /* each compartment. This proportioning follows the methodology of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1436 /* Buhlmann/Keller. If there is no helium and nitrogen in the compartment, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1437 /* such as after extended periods of oxygen breathing, then the minimum value */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1438 /* across both gases will be used. It is important to note that if a */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1439 /* compartment is empty of helium and nitrogen, then the weighted allowable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1440 /* gradient formula cannot be used since it will result in division by zero. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1441 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1442
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1443 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1444 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1445
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1446 // abfrage raus und pointer stattdessen
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1447 if(fallowable){
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1448 gradient_he = allowable_gradient_he[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1449 gradient_n2 = allowable_gradient_n2[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1450 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1451 else{
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1452 gradient_he = deco_gradient_he[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1453 gradient_n2 = deco_gradient_n2[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1454 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1455
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1456 gas_loading = helium_pressure[i - 1] + nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1457
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1458 if (gas_loading > 0)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1459 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1460 weighted_allowable_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1461 (gradient_he * helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1462 gradient_n2 * nitrogen_pressure[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1463 (helium_pressure[i - 1] + nitrogen_pressure[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1464
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1465 tolerated_ambient_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1466 gas_loading +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1467 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1468 weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1469 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1470 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1471 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1472 /* Computing MIN */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1473 r1 = gradient_he;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1474 r2 = gradient_n2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1475 weighted_allowable_gradient = fminf(r1,r2);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1476
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1477 tolerated_ambient_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1478 CONSTANT_PRESSURE_OTHER_GASES - weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1479 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1480
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1481 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1482 /* The tolerated ambient pressure cannot be less than zero absolute, i.e., */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1483 /* the vacuum of outer space! */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1484 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1485
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1486 if (tolerated_ambient_pressure < 0.0) {
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1487 tolerated_ambient_pressure = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1488 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1489 compartment_deco_ceiling[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1490 tolerated_ambient_pressure - barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1491 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1492
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1493 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1494 /* The Deco Ceiling Depth is computed in a loop after all of the individual */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1495 /* compartment deco ceilings have been calculated. It is important that the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1496 /* Deco Ceiling Depth (max deco ceiling across all compartments) only be */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1497 /* extracted from the compartment values and not be compared against some */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1498 /* initialization value. For example, if MAX(Deco_Ceiling_Depth . .) was */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1499 /* compared against zero, this could cause a program lockup because sometimes */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1500 /* the Deco Ceiling Depth needs to be negative (but not less than zero */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1501 /* absolute ambient pressure) in order to decompress to the last stop at zero */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1502 /* depth. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1503 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1504
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1505 *deco_ceiling_depth = compartment_deco_ceiling[0];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1506 for (i = 2; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1507 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1508 /* Computing MAX */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1509 r1 = *deco_ceiling_depth;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1510 r2 = compartment_deco_ceiling[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1511 *deco_ceiling_depth = fmaxf(r1,r2);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1512 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1513 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1514 } /* calc_deco_ceiling */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1515
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1516
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1517
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1518 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1519 /* SUBROUTINE CALC_MAX_ACTUAL_GRADIENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1520 /* Purpose: This subprogram calculates the actual supersaturation gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1521 /* obtained in each compartment as a result of the ascent profile during */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1522 /* decompression. Similar to the concept with crushing pressure, the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1523 /* supersaturation gradients are not cumulative over a multi-level, staged */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1524 /* ascent. Rather, it will be the maximum value obtained in any one discrete */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1525 /* step of the overall ascent. Thus, the program must compute and store the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1526 /* maximum actual gradient for each compartment that was obtained across all */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1527 /* steps of the ascent profile. This subroutine is invoked on the last pass */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1528 /* through the deco stop loop block when the final deco schedule is being */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1529 /* generated. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1530 /* */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1531 /* The max actual gradients are later used by the VPM Repetitive Algorithm to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1532 /* determine if adjustments to the critical radii are required. If the max */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1533 /* actual gradient did not exceed the initial alllowable gradient, then no */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1534 /* adjustment will be made. However, if the max actual gradient did exceed */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1535 /* the intitial allowable gradient, such as permitted by the Critical Volume */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1536 /* Algorithm, then the critical radius will be adjusted (made larger) on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1537 /* repetitive dive to compensate for the bubbling that was allowed on the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1538 /* previous dive. The use of the max actual gradients is intended to prevent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1539 /* the repetitive algorithm from being overly conservative. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1540 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1541
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1542 static int calc_max_actual_gradient(float *deco_stop_depth)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1543 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1544 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1545 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1546
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1547 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1548 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1549 float compartment_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1550
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1551 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1552 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1553 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1554 /* Note: negative supersaturation gradients are meaningless for this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1555 /* application, so the values must be equal to or greater than zero. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1556 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1557
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1558 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1559 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1560 compartment_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1561 helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1562 nitrogen_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1563 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1564 (*deco_stop_depth + barometric_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1565 if (compartment_gradient <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1566 compartment_gradient = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1567 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1568 /* Computing MAX */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1569 r1 = pVpm->max_actual_gradient[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1570 pVpm->max_actual_gradient[i - 1] = fmaxf(r1, compartment_gradient);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1571 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1572 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1573 } /* calc_max_actual_gradient */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1574
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1575 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1576 /* SUBROUTINE CALC_SURFACE_PHASE_VOLUME_TIME */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1577 /* Purpose: This subprogram computes the surface portion of the total phase */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1578 /* volume time. This is the time factored out of the integration of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1579 /* supersaturation gradient x time over the surface interval. The VPM */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1580 /* considers the gradients that allow bubbles to form or to drive bubble */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1581 /* growth both in the water and on the surface after the dive. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1582
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1583 /* This subroutine is a new development to the VPM algorithm in that it */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1584 /* computes the time course of supersaturation gradients on the surface */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1585 /* when both helium and nitrogen are present. Refer to separate write-up */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1586 /* for a more detailed explanation of this algorithm. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1587 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1588
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1589 static int calc_surface_phase_volume_time()
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1590 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1591 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1592 float decay_time_to_zero_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1593 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1594 float integral_gradient_x_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1595 surface_inspired_n2_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1596
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1597 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1598 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1599 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1600 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1601
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1602 surface_inspired_n2_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1603 (barometric_pressure - WATER_VAPOR_PRESSURE) * 0.79f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1604 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1605 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1606 if (nitrogen_pressure[i - 1] > surface_inspired_n2_pressure)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1607 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1608 surface_phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1609 (helium_pressure[i - 1] / HELIUM_TIME_CONSTANT[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1610 (nitrogen_pressure[i - 1] - surface_inspired_n2_pressure) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1611 NITROGEN_TIME_CONSTANT[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1612 (helium_pressure[i - 1] + nitrogen_pressure[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1613 surface_inspired_n2_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1614 } else if (nitrogen_pressure[i - 1] <= surface_inspired_n2_pressure &&
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1615 helium_pressure[i - 1] + nitrogen_pressure[i - 1] >= surface_inspired_n2_pressure)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1616 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1617 decay_time_to_zero_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1618 1.0f / (NITROGEN_TIME_CONSTANT[i - 1] - HELIUM_TIME_CONSTANT[i - 1]) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1619 log((surface_inspired_n2_pressure - nitrogen_pressure[i - 1]) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1620 helium_pressure[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1621 integral_gradient_x_time =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1622 helium_pressure[i - 1] /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1623 HELIUM_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1624 (1.0f - expf(-HELIUM_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1625 decay_time_to_zero_gradient)) +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1626 (nitrogen_pressure[i - 1] - surface_inspired_n2_pressure) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1627 NITROGEN_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1628 (1.0f - expf(-NITROGEN_TIME_CONSTANT[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1629 decay_time_to_zero_gradient));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1630 surface_phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1631 integral_gradient_x_time /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1632 (helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1633 nitrogen_pressure[i - 1] -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1634 surface_inspired_n2_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1635 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1636 surface_phase_volume_time[i - 1] = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1637 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1638 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1639 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1640 } /* calc_surface_phase_volume_time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1641
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1642 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1643 /* SUBROUTINE CRITICAL_VOLUME */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1644 /* Purpose: This subprogram applies the VPM Critical Volume Algorithm. This */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1645 /* algorithm will compute "relaxed" gradients for helium and nitrogen based */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1646 /* on the setting of the Critical Volume Parameter Lambda. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1647 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1648
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1649 static int critical_volume(float *deco_phase_volume_time)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1650 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1651 /* System generated locals */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1652 float r1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1653
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1654 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1655 float initial_allowable_grad_n2_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1656 initial_allowable_grad_he_pa,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1657 parameter_lambda_pascals, b,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1658 c;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1659 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1660 float new_allowable_grad_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1661 phase_volume_time[16],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1662 new_allowable_grad_he_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1663 adj_crush_pressure_n2_pascals,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1664 adj_crush_pressure_he_pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1665
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1666 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1667 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1668 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1669 /* Note: Since the Critical Volume Parameter Lambda was defined in units of */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1670 /* fsw-min in the original papers by Yount and colleauges, the same */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1671 /* convention is retained here. Although Lambda is adjustable only in units */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1672 /* of fsw-min in the program settings (range from 6500 to 8300 with default */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1673 /* 7500), it will convert to the proper value in Pascals-min in this */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1674 /* subroutine regardless of which diving pressure units are being used in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1675 /* the main program - feet of seawater (fsw) or meters of seawater (msw). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1676 /* The allowable gradient is computed using the quadratic formula (refer to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1677 /* separate write-up posted on the Deco List web site). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1678 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1679
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1680 /**
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1681 ******************************************************************************
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1682 * @brief critical_volume comment by hw
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1683 * @version V0.0.1
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1684 * @date 19-April-2014
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1685 * @retval global: allowable_gradient_he[i], allowable_gradient_n2[i]
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1686 ******************************************************************************
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1687 */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1688
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1689 parameter_lambda_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1690 CRIT_VOLUME_PARAMETER_LAMBDA / 33.0f * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1691 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1692 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1693 phase_volume_time[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1694 *deco_phase_volume_time + surface_phase_volume_time[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1695 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1696 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1697 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1698
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1699 adj_crush_pressure_he_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1700 pVpm->adjusted_crushing_pressure_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1701
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1702 initial_allowable_grad_he_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1703 pVpm->initial_allowable_gradient_he[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1704
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1705 b = initial_allowable_grad_he_pa + parameter_lambda_pascals *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1706 SURFACE_TENSION_GAMMA / (
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1707 SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1708
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1709 c = SURFACE_TENSION_GAMMA * (
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1710 SURFACE_TENSION_GAMMA * (
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1711 parameter_lambda_pascals * adj_crush_pressure_he_pascals)) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1712 (SKIN_COMPRESSION_GAMMAC *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1713 (SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1714 /* Computing 2nd power */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1715
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1716 r1 = b;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1717
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1718 new_allowable_grad_he_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1719 (b + sqrtf(r1 * r1 - c * 4.0f)) / 2.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1720
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1721 /* modify global variable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1722 allowable_gradient_he[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1723 new_allowable_grad_he_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1724 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1725
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1726 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1727 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1728 adj_crush_pressure_n2_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1729 pVpm->adjusted_crushing_pressure_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1730
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1731 initial_allowable_grad_n2_pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1732 pVpm->initial_allowable_gradient_n2[i - 1] / UNITS_FACTOR * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1733
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1734 b = initial_allowable_grad_n2_pa + parameter_lambda_pascals *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1735 SURFACE_TENSION_GAMMA / (
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1736 SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1737
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1738 c = SURFACE_TENSION_GAMMA *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1739 (SURFACE_TENSION_GAMMA *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1740 (parameter_lambda_pascals * adj_crush_pressure_n2_pascals)) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1741 (SKIN_COMPRESSION_GAMMAC *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1742 (SKIN_COMPRESSION_GAMMAC * phase_volume_time[i - 1]));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1743 /* Computing 2nd power */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1744
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1745 r1 = b;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1746
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1747 new_allowable_grad_n2_pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1748 (b + sqrtf(r1 * r1 - c * 4.0f)) / 2.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1749
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1750 /* modify global variable */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1751 allowable_gradient_n2[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1752 new_allowable_grad_n2_pascals / 101325.0f * UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1753 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1754 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1755 } /* critical_volume */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1756
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1757 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1758 /* SUBROUTINE CALC_START_OF_DECO_ZONE */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1759 /* Purpose: This subroutine uses the Bisection Method to find the depth at */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1760 /* which the leading compartment just enters the decompression zone. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1761 /* Source: "Numerical Recipes in Fortran 77", Cambridge University Press, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1762 /* 1992. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1763 /* =============================================================================== */
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heinrichsweikamp
parents:
diff changeset
1764
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1765 static int calc_start_of_deco_zone(float *starting_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1766 float *rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1767 float *depth_start_of_deco_zone)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1768 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1769 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1770 float last_diff_change,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1771 initial_helium_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1772 mid_range_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1773 short i, j;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1774 float initial_inspired_n2_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1775 cpt_depth_start_of_deco_zone,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1776 low_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1777 initial_inspired_he_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1778 high_bound_nitrogen_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1779 nitrogen_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1780 function_at_mid_range,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1781 function_at_low_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1782 high_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1783 mid_range_helium_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1784 mid_range_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1785 starting_ambient_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1786 initial_nitrogen_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1787 function_at_high_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1788
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1789 float time_to_start_of_deco_zone,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1790 high_bound_helium_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1791 helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1792 differential_change;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1793 float fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1794 float fraction_helium_end;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1795 float fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1796 float fraction_nitrogen_end;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1797 float ending_ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1798 float time_test;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1799
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1800
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1801 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1802 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1803 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1804 /* First initialize some variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1805 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1806
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1807 *depth_start_of_deco_zone = 0.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1808 starting_ambient_pressure = *starting_depth + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1809
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1810 //>>>>>>>>>>>>>>>>>>>>
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1811 //Test depth to calculate helium_rate and nitrogen_rate
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1812 ending_ambient_pressure = starting_ambient_pressure/2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1813
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1814 time_test = (ending_ambient_pressure - starting_ambient_pressure) / *rate;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1815 decom_get_inert_gases(starting_ambient_pressure / 10.0, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1816 decom_get_inert_gases(ending_ambient_pressure / 10.0, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_end, &fraction_helium_end );
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1817 initial_inspired_he_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1818 initial_inspired_n2_pressure = (starting_ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1819 helium_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_helium_end - initial_inspired_he_pressure)/time_test;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1820 nitrogen_rate = ((ending_ambient_pressure - WATER_VAPOR_PRESSURE)* fraction_nitrogen_end - initial_inspired_n2_pressure)/time_test;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1821 //>>>>>>>>>>>>>>>>>>>>>
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1822 /*initial_inspired_he_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1823 (starting_ambient_pressure - water_vapor_pressure) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1824 fraction_helium[mix_number - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1825 initial_inspired_n2_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1826 (starting_ambient_pressure - water_vapor_pressure) *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1827 fraction_nitrogen[mix_number - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1828 helium_rate = *rate * fraction_helium[mix_number - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1829 nitrogen_rate = *rate * fraction_nitrogen[mix_number - 1];*/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1830
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1831 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1832 /* ESTABLISH THE BOUNDS FOR THE ROOT SEARCH USING THE BISECTION METHOD */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1833 /* AND CHECK TO MAKE SURE THAT THE ROOT WILL BE WITHIN BOUNDS. PROCESS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1834 /* EACH COMPARTMENT INDIVIDUALLY AND FIND THE MAXIMUM DEPTH ACROSS ALL */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1835 /* COMPARTMENTS (LEADING COMPARTMENT) */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1836 /* In this case, we are solving for time - the time when the gas tension in */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1837 /* the compartment will be equal to ambient pressure. The low bound for time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1838 /* is set at zero and the high bound is set at the time it would take to */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1839 /* ascend to zero ambient pressure (absolute). Since the ascent rate is */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1840 /* negative, a multiplier of -1.0 is used to make the time positive. The */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1841 /* desired point when gas tension equals ambient pressure is found at a time */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1842 /* somewhere between these endpoints. The algorithm checks to make sure that */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1843 /* the solution lies in between these bounds by first computing the low bound */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1844 /* and high bound function values. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1845 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1846
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
1847 low_bound = 0.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1848 high_bound = starting_ambient_pressure / *rate * -1.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1849 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1850 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1851 initial_helium_pressure = helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1852 initial_nitrogen_pressure = nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1853 function_at_low_bound =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1854 initial_helium_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1855 initial_nitrogen_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1856 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1857 starting_ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1858 high_bound_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1859 schreiner_equation__2(&initial_inspired_he_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1860 &helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1861 &high_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1862 &HELIUM_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1863 &initial_helium_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1864 high_bound_nitrogen_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1865 schreiner_equation__2(&initial_inspired_n2_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1866 &nitrogen_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1867 &high_bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1868 &NITROGEN_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1869 &initial_nitrogen_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1870 function_at_high_bound = high_bound_helium_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1871 high_bound_nitrogen_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1872 CONSTANT_PRESSURE_OTHER_GASES;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1873 if (function_at_high_bound * function_at_low_bound >= 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1874 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1875 printf("\nERROR! ROOT IS NOT WITHIN BRACKETS");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1876 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1877
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1878 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1879 /* APPLY THE BISECTION METHOD IN SEVERAL ITERATIONS UNTIL A SOLUTION WITH */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1880 /* THE DESIRED ACCURACY IS FOUND */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1881 /* Note: the program allows for up to 100 iterations. Normally an exit will */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1882 /* be made from the loop well before that number. If, for some reason, the */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1883 /* program exceeds 100 iterations, there will be a pause to alert the user. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1884 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1885
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1886 if (function_at_low_bound < 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1887 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1888 time_to_start_of_deco_zone = low_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1889 differential_change = high_bound - low_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1890 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1891 time_to_start_of_deco_zone = high_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1892 differential_change = low_bound - high_bound;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1893 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1894 for (j = 1; j <= 100; ++j)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1895 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1896 last_diff_change = differential_change;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1897 differential_change = last_diff_change * 0.5f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1898 mid_range_time =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1899 time_to_start_of_deco_zone +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1900 differential_change;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1901 mid_range_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1902 schreiner_equation__2(&initial_inspired_he_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1903 &helium_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1904 &mid_range_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1905 &HELIUM_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1906 &initial_helium_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1907 mid_range_nitrogen_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1908 schreiner_equation__2(&initial_inspired_n2_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1909 &nitrogen_rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1910 &mid_range_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1911 &NITROGEN_TIME_CONSTANT[i - 1],
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1912 &initial_nitrogen_pressure);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1913 function_at_mid_range =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1914 mid_range_helium_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1915 mid_range_nitrogen_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1916 CONSTANT_PRESSURE_OTHER_GASES -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1917 (starting_ambient_pressure + *rate * mid_range_time);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1918 if (function_at_mid_range <= 0.0f) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1919 time_to_start_of_deco_zone = mid_range_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1920 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1921 if( fabs(differential_change) < 0.001f
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1922 || function_at_mid_range == 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1923 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1924 goto L170;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1925 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1926 /* L150: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1927 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1928 printf("\nERROR! ROOT SEARCH EXCEEDED MAXIMUM ITERATIONS");
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1929 //pause();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1930
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1931 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1932 /* When a solution with the desired accuracy is found, the program jumps out */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1933 /* of the loop to Line 170 and assigns the solution value for the individual */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1934 /* compartment. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1935 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1936
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1937 L170:
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1938 cpt_depth_start_of_deco_zone =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1939 starting_ambient_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1940 *rate * time_to_start_of_deco_zone -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1941 barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1942
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1943 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1944 /* The overall solution will be the compartment with the maximum depth where */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1945 /* gas tension equals ambient pressure (leading compartment). */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1946 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1947
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1948 *depth_start_of_deco_zone =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1949 fmaxf(*depth_start_of_deco_zone, cpt_depth_start_of_deco_zone);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1950 /* L200: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1951 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1952 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1953 } /* calc_start_of_deco_zone */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1954
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1955 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1956 /* SUBROUTINE PROJECTED_ASCENT */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1957 /* Purpose: This subprogram performs a simulated ascent outside of the main */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1958 /* program to ensure that a deco ceiling will not be violated due to unusual */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1959 /* gas loading during ascent (on-gassing). If the deco ceiling is violated, */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1960 /* the stop depth will be adjusted deeper by the step size until a safe */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1961 /* ascent can be made. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1962 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1963
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
1964 static int projected_ascent(float *starting_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1965 float *rate,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1966 float *deco_stop_depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1967 float *step_size)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1968 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1969 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1970 float weighted_allowable_gradient,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1971 ending_ambient_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1972 temp_gas_loading[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1973 int i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1974 float allowable_gas_loading[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1975 float temp_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1976 float temp_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1977 float run_time_save = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1978
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1979 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1980 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1981 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1982 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1983
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1984
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1985 L665:
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1986 ending_ambient_pressure = *deco_stop_depth + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1987 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1988 temp_helium_pressure[i - 1] = helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1989 temp_nitrogen_pressure[i - 1] = nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1990 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1991 run_time_save = run_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1992 gas_loadings_ascent_descen(temp_helium_pressure, temp_nitrogen_pressure, *starting_depth,*deco_stop_depth,*rate,true);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1993 run_time = run_time_save;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1994
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1995 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1996 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1997 temp_gas_loading[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1998 temp_helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
1999 temp_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2000 if (temp_gas_loading[i - 1] > 0.0f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2001 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2002 weighted_allowable_gradient =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2003 (allowable_gradient_he[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2004 temp_helium_pressure[i - 1] +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2005 allowable_gradient_n2[i - 1] *
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2006 temp_nitrogen_pressure[i - 1]) / temp_gas_loading[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2007 } else {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2008 /* Computing MIN */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2009 weighted_allowable_gradient = fminf(allowable_gradient_he[i - 1],allowable_gradient_n2[i - 1]);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2010 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2011 allowable_gas_loading[i - 1] =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2012 ending_ambient_pressure +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2013 weighted_allowable_gradient -
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2014 CONSTANT_PRESSURE_OTHER_GASES;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2015 /* L670: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2016 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2017 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2018 if (temp_gas_loading[i - 1] > allowable_gas_loading[i - 1]) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2019 *deco_stop_depth += *step_size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2020 goto L665;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2021 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2022 /* L671: */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2023 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2024 return 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2025 } /* projected_ascent */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2026
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2027 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2028 /* SUBROUTINE DECOMPRESSION_STOP */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2029 /* Purpose: This subprogram calculates the required time at each */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2030 /* decompression stop. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2031 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2032
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
2033 static void decompression_stop(float *deco_stop_depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2034 float *step_size,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2035 _Bool final_deco_calculation)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2036 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2037 /* Local variables */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2038 float inspired_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2039 // short last_segment_number;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2040 // float weighted_allowable_gradient;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2041 float initial_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2042 /* by hw */
51
8f8ea3a32e82 Resolved warnings pointing to possible invalid memory access
Ideenmodellierer
parents: 38
diff changeset
2043 float initial_CNS = gCNS_VPM;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2044
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2045 //static float time_counter;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2046 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2047 float ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2048 float inspired_helium_pressure,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2049 next_stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2050 //last_run_time,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2051 //temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2052
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2053 float deco_ceiling_depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2054 initial_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2055 //round_up_operation;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2056 float fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2057 float fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2058 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2059 _Bool buehlmann_wait = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2060 float tissue_He_saturation[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2061 float tissue_N2_saturation[16];
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2062 float vpm_buehlmann_safety_gradient = 1.0f - (((float)pDiveSettings->vpm_conservatism) / 40);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2063 /* loop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2064 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2065 /* CALCULATIONS */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2066 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2067
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2068 segment_time = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2069 // temp_segment_time = segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2070 ambient_pressure = *deco_stop_depth + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2071 //ending_ambient_pressure = ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2072 decom_get_inert_gases(ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]), &fraction_nitrogen_begin, &fraction_helium_begin );
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2073
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2074 if(*deco_stop_depth == (float)(pDiveSettings->last_stop_depth_bar * 10))
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2075 next_stop = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2076 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2077 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2078 next_stop = *deco_stop_depth - *step_size;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2079 next_stop = fmaxf(next_stop,(float)pDiveSettings->last_stop_depth_bar * 10);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2080 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2081
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2082 inspired_helium_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2083 (ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2084 inspired_nitrogen_pressure =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2085 (ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2086
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2087 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2088 /* Check to make sure that program won't lock up if unable to decompress */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2089 /* to the next stop. If so, write error message and terminate program. */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2090 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2091
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2092 //deco_ceiling_depth = next_stop +1; //deco_ceiling_depth = next_stop + 1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2093 if(!vpm_violates_buehlmann)
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2094 {
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2095 calc_deco_ceiling(&deco_ceiling_depth, false); //weg, weil auf jeden Fall schleife für safety und so konservativer
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2096 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2097 else
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2098 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2099 deco_ceiling_depth = next_stop + 1.0;
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2100 }
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2101 if(deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2102 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2103 while (deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2104 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2105
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2106 segment_time += 60.0;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2107 if(segment_time >= 999.0 )
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2108 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2109 segment_time = 999.0 ;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2110 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2111 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2112 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2113 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2114 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2115 decom_oxygen_calculate_cns_exposure(60*60,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2116 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2117 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2118 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2119 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2120 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_one_hour[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2121 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_one_hour[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2122 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2123 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2124 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2125 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2126 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2127 segment_time -= 60.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2128 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2129 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2130 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2131 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2132 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2133 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2134 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2135 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2136 count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2137 while (deco_ceiling_depth > next_stop && count < 13)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2138 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2139 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2140 segment_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2141 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2142 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2143 decom_oxygen_calculate_cns_exposure(60*5,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2144 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2145 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2146 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2147 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2148 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_five_minutes[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2149 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_five_minutes[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2150 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2151 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2152 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2153 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2154 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2155 segment_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2156 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2157 for (i = 0; i < 16; i++) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2158 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2159 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2160 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2161 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2162 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2163 buehlmann_wait = false;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2164 while (buehlmann_wait || (deco_ceiling_depth > next_stop))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2165 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2166 //time_counter = temp_segment_time;
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2167 segment_time += 1.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2168
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2169 if(segment_time >= 999.0 )
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2170 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2171 segment_time = 999.0 ;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2172 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2173 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2174 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2175 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2176 initial_CNS = gCNS_VPM;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2177 decom_oxygen_calculate_cns_exposure(60*1,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2178 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2179 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2180 initial_helium_pressure[i] = helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2181 initial_nitrogen_pressure[i] = nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2182 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_one_minute[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2183 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_one_minute[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2184 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2185 if(!buehlmann_wait)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2186 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2187
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2188 if(buehlmannSafety && final_deco_calculation && !(deco_ceiling_depth > next_stop))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2189 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2190 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2191 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2192 tissue_He_saturation[i] = helium_pressure[i] / 10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2193 tissue_N2_saturation[i] = nitrogen_pressure[i] / 10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2194 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2195 if( (fabsf(nitrogen_pressure[15] - inspired_nitrogen_pressure) < 0.00001f) && (fabsf(helium_pressure[15] - inspired_helium_pressure) < 0.00001f)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2196 && (fabsf(nitrogen_pressure[0] - inspired_nitrogen_pressure) < 0.00001f) && (fabsf(helium_pressure[0] - inspired_helium_pressure) < 0.00001f))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2197 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2198 buehlmann_wait_exceeded = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2199 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2200 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2201
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2202 if(decom_tissue_test_tolerance(tissue_N2_saturation, tissue_He_saturation, vpm_buehlmann_safety_gradient, (next_stop / 10.0f) + pInput->pressure_surface_bar))
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2203 break;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2204
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2205 buehlmann_wait = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2206 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2207 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2208 if(buehlmann_wait)
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2209 {
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2210 vpm_violates_buehlmann = true;
149
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2211 }
e1d66bc78f9a Eliminate warnings
Ideenmodellierer
parents: 51
diff changeset
2212 if(!buehlmann_wait)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2213 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2214 if(deco_ceiling_depth < next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2215 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2216 segment_time -= 1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2217 gCNS_VPM = initial_CNS;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2218 for (i = 0; i < 16; i++) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2219 helium_pressure[i] = initial_helium_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2220 nitrogen_pressure[i] = initial_nitrogen_pressure[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2221 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2222 deco_ceiling_depth = next_stop +1;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2223 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2224 while (deco_ceiling_depth > next_stop)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2225 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2226 //time_counter = temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2227 segment_time += (float) 1.0f / 3.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2228 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2229 initial_CNS = gCNS_VPM;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2230 decom_oxygen_calculate_cns_exposure(20,&pDiveSettings->decogaslist[mix_number],ambient_pressure/10,&gCNS_VPM);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2231 for (i = 0; i < 16; i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2232 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2233 helium_pressure[i] += (inspired_helium_pressure - helium_pressure[i]) * float_buehlmann_He_factor_expositon_20_seconds[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2234 nitrogen_pressure[i] += (inspired_nitrogen_pressure - nitrogen_pressure[i]) * float_buehlmann_N2_factor_expositon_20_seconds[i];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2235 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2236 calc_deco_ceiling(&deco_ceiling_depth, false);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2237 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2238 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2239 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2240
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2241 /*float pressure_save =dive_data.pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2242 dive_data.pressure = ambient_pressure/10;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2243 tissues_exposure_stage(st_deco_test,(int)(segment_time * 60), &dive_data, &gaslist);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2244 dive_data.pressure = pressure_save;*/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2245 run_time += segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2246 return;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2247 } /* decompression_stop */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2248
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2249 /* =============================================================================== */
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2250 // SUROUTINE BOYLES_LAW_COMPENSATION
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2251 // Purpose: This subprogram calculates the reduction in allowable gradients
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2252 // with decreasing ambient pressure during the decompression profile based
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2253 // on Boyle's Law considerations.
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2254 //===============================================================================
290
5e0bb91d4a12 VPM, cleanup: 1st round
Jan Mulder <jlmulder@xs4all.nl>
parents: 247
diff changeset
2255 static void BOYLES_LAW_COMPENSATION (float* First_Stop_Depth,
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2256 float* Deco_Stop_Depth,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2257 float* Step_Size)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2258 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2259 short i;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2260
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2261 float Next_Stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2262 float Ambient_Pressure_First_Stop, Ambient_Pressure_Next_Stop;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2263 float Amb_Press_First_Stop_Pascals, Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2264 float A, B, C, Low_Bound, High_Bound, Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2265 float Deco_Gradient_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2266 float Allow_Grad_First_Stop_He_Pa, Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2267 float Allow_Grad_First_Stop_N2_Pa, Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2268
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2269 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2270 // LO//AL ARRAYS
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2271 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2272 // float Radius1_He[16], Radius2_He[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2273 // float Radius1_N2[16], Radius2_N2[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2274 float root_factor;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2275
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2276 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2277 // CALCULATIONS
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2278 //===============================================================================
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2279 Next_Stop = *Deco_Stop_Depth - *Step_Size;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2280
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2281 Ambient_Pressure_First_Stop = *First_Stop_Depth +
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2282 barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2283
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2284 Ambient_Pressure_Next_Stop = Next_Stop + barometric_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2285
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2286 Amb_Press_First_Stop_Pascals = (Ambient_Pressure_First_Stop/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2287
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2288 Amb_Press_Next_Stop_Pascals =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2289 (Ambient_Pressure_Next_Stop/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2290 root_factor = powf(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0f / 3.0f);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2291
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2292 for( i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2293 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2294 Allow_Grad_First_Stop_He_Pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2295 (allowable_gradient_he[i]/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2296
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2297 Radius_First_Stop_He = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2298 Allow_Grad_First_Stop_He_Pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2299
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2300 // Radius1_He[i] = Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2301 A = Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2302 B = -2.0f * SURFACE_TENSION_GAMMA;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2303 C = (Amb_Press_First_Stop_Pascals + (2.0f * SURFACE_TENSION_GAMMA)/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2304 Radius_First_Stop_He)* Radius_First_Stop_He*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2305 (Radius_First_Stop_He*(Radius_First_Stop_He));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2306 Low_Bound = Radius_First_Stop_He;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2307 High_Bound = Radius_First_Stop_He * root_factor;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2308 //*pow(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2309 //*(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals)**(1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2310
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2311 radius_root_finder(&A,&B,&C, &Low_Bound, &High_Bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2312 &Ending_Radius);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2313
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2314 // Radius2_He[i] = Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2315 Deco_Gradient_Pascals = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2316 Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2317
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2318 deco_gradient_he[i] = (Deco_Gradient_Pascals / 101325.0f)*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2319 UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2320
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2321 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2322
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2323 for( i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2324 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2325 Allow_Grad_First_Stop_N2_Pa =
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2326 (allowable_gradient_n2[i]/UNITS_FACTOR) * 101325.0f;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2327
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2328 Radius_First_Stop_N2 = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2329 Allow_Grad_First_Stop_N2_Pa;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2330
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2331 // Radius1_N2[i] = Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2332 A = Amb_Press_Next_Stop_Pascals;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2333 B = -2.0f * SURFACE_TENSION_GAMMA;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2334 C = (Amb_Press_First_Stop_Pascals + (2.0f * SURFACE_TENSION_GAMMA)/
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2335 Radius_First_Stop_N2)* Radius_First_Stop_N2*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2336 (Radius_First_Stop_N2*(Radius_First_Stop_N2));
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2337 Low_Bound = Radius_First_Stop_N2;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2338 High_Bound = Radius_First_Stop_N2* root_factor;//pow(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals,1.0/3.0);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2339
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2340 //High_Bound = Radius_First_Stop_N2*exp(log(Amb_Press_First_Stop_Pascals/Amb_Press_Next_Stop_Pascals)/3);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2341 radius_root_finder(&A,&B,&C, &Low_Bound, &High_Bound,
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2342 &Ending_Radius);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2343
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2344 // Radius2_N2[i] = Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2345 Deco_Gradient_Pascals = (2.0f * SURFACE_TENSION_GAMMA) /
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2346 Ending_Radius;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2347
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2348 deco_gradient_n2[i] = (Deco_Gradient_Pascals / 101325.0f)*
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2349 UNITS_FACTOR;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2350 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2351 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2352
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2353 /* =============================================================================== */
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2354 // vpm_calc_ndl
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2355 // Purpose: This function computes NDL (time where no decostops are needed)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2356 //===============================================================================
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2357 #define MAX_NDL 240
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2358
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2359 static int vpm_calc_ndl(void)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2360 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2361 static float future_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2362 static float future_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2363 static int temp_segment_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2364 static int mix_number;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2365 static float inspired_helium_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2366 static float inspired_nitrogen_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2367
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2368 float previous_helium_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2369 float previous_nitrogen_pressure[16];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2370 float ambient_pressure;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2371 float fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2372 float fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2373 int i = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2374 int count = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2375 int status = CALC_END;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2376
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2377 for(i = 0; i < 16;i++)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2378 {
863
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2379 future_helium_pressure[i] = pInput->tissue_helium_bar[i] * 10.0;//tissue_He_saturation[st_dive][i] * 10;
0c89c6fa949c Bugfix empty line in deco plan (VPM only):
Ideenmodellierer
parents: 830
diff changeset
2380 future_nitrogen_pressure[i] = pInput->tissue_nitrogen_bar[i] * 10.0;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2381 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2382 temp_segment_time = 0;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2383
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2384 mix_number = 0;
877
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2385 ambient_pressure = pInput->pressure_ambient_bar * 10;
a0900e4df15c DevBugfix: Exit condition deco_stop_depth
Ideenmodellierer
parents: 863
diff changeset
2386 decom_get_inert_gases( ambient_pressure / 10, (&pDiveSettings->decogaslist[mix_number]) , &fraction_nitrogen_begin, &fraction_helium_begin );
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2387 inspired_helium_pressure =(ambient_pressure - WATER_VAPOR_PRESSURE) * fraction_helium_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2388 inspired_nitrogen_pressure =(ambient_pressure - WATER_VAPOR_PRESSURE) *fraction_nitrogen_begin;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2389
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2390 status = CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2391 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2392 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2393 count++;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2394 temp_segment_time += 60;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2395 if(temp_segment_time >= MAX_NDL)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2396 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2397 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2398 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2399 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2400 run_time += 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2401 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2402 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2403 previous_helium_pressure[i-1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2404 previous_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2405 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_one_hour[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2406 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_one_hour[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2407 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2408 nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2409 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2410 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2411 while((status = vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2412
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2413 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2414
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2415 temp_segment_time -= 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2416 run_time -= 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2417 for (i = 1; i <= 16; ++i)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2418 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2419 future_helium_pressure[i - 1] = previous_helium_pressure[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2420 future_nitrogen_pressure[i - 1] = previous_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2421 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2422
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2423 status = CALC_END;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2424 if(temp_segment_time < 60)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2425 nullzeit_unter60 = true;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2426
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2427 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2428 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2429 temp_segment_time += 5;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2430 if(temp_segment_time >= MAX_NDL)
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2431 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2432 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2433 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2434 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2435 if(nullzeit_unter60 && temp_segment_time > 60)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2436 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2437 nullzeit_unter60 = false;
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2438 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2439 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2440 run_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2441 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2442 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2443 previous_helium_pressure[i-1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2444 previous_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2445 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_five_minutes[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2446 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_five_minutes[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2447 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2448 nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2449 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2450 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2451 while((status =vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2452 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2453 temp_segment_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2454 run_time -= 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2455 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2456 future_helium_pressure[i - 1] = previous_helium_pressure[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2457 future_nitrogen_pressure[i - 1] = previous_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2458 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2459 status = CALC_END;
291
24ff72e627f4 Deco Models: limit NDL to 240 minutes
Jan Mulder <jlmulder@xs4all.nl>
parents: 290
diff changeset
2460
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2461 if(temp_segment_time <= 20)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2462 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2463 while (status == CALC_END)
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2464 {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2465 temp_segment_time += minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2466 run_time += minimum_deco_stop_time;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2467 //goto L700;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2468 for (i = 1; i <= 16; ++i) {
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2469 future_helium_pressure[i - 1] = future_helium_pressure[i - 1] + (inspired_helium_pressure - future_helium_pressure[i - 1]) * float_buehlmann_He_factor_expositon_one_minute[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2470 future_nitrogen_pressure[i - 1] = future_nitrogen_pressure[i - 1] + (inspired_nitrogen_pressure - future_nitrogen_pressure[i - 1]) * float_buehlmann_N2_factor_expositon_one_minute[i-1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2471 helium_pressure[i - 1] = future_helium_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2472 nitrogen_pressure[i - 1] =future_nitrogen_pressure[i - 1];
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2473
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2474 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2475 vpm_calc_deco();
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2476 while((status =vpm_calc_critcal_volume(true,true)) == CALC_CRITICAL);
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2477
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2478 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2479 }
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2480 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2481 temp_segment_time += 5;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2482 pDecoInfo->output_ndl_seconds = temp_segment_time * 60;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2483 if(temp_segment_time > 1)
292
bfcea6e2ab3f translate: nullzeit -> ndl
Jan Mulder <jlmulder@xs4all.nl>
parents: 291
diff changeset
2484 return CALC_NDL;
38
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2485 else
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2486 return CALC_BEGIN;
5f11787b4f42 include in ostc4 repository
heinrichsweikamp
parents:
diff changeset
2487 }
902
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2488
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2489 void vpm_table_init()
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2490 {
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2491 vpmTable.output_time_to_surface_seconds = 0;
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2492 }
d4622533271d VPM table mode:
Ideenmodellierer
parents: 877
diff changeset
2493