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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/unit.c
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5 /// \brief input to meter/celsius or feet/farenheit
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6 /// \author heinrichs weikamp gmbh
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7 /// \date 24-Feb-2015
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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
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29 /* Includes ------------------------------------------------------------------*/
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30 #include "unit.h"
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31 #include "settings.h"
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32
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33 /* Exported variables --------------------------------------------------------*/
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34
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35 /* Private types -------------------------------------------------------------*/
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36 uint8_t test;
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37
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38 /* Private variables ---------------------------------------------------------*/
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39
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40 /* Private variables with external access via get_xxx() function -------------*/
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41
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42 /* Private function prototypes -----------------------------------------------*/
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43
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44 /* Announced function prototypes -----------------------------------------------*/
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45
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46 /* Exported functions --------------------------------------------------------*/
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47
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48 char unit_depth_char1_T105(void)
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49 {
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50 if(settingsGetPointer()->nonMetricalSystem)
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51 return '\'';
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52 else
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53 return 'm';
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54 }
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55
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56 char unit_depth_char2_T105(void)
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57 {
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58 if(settingsGetPointer()->nonMetricalSystem)
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59 return ' ';
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60 else
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61 return '\004'; // 004 is nop
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62 }
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63
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64 char unit_depth_char1(void)
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65 {
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66 if(settingsGetPointer()->nonMetricalSystem)
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67 return 'f';
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68 else
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69 return 'm';
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70 }
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71
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72 char unit_depth_char2(void)
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73 {
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74 if(settingsGetPointer()->nonMetricalSystem)
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75 return 't';
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76 else
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77 return '\004'; // 004 is nop
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78 }
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79
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80 float unit_depth_float(float input_meter)
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81 {
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82 if(settingsGetPointer()->nonMetricalSystem == 0)
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83 return input_meter;
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84 else
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85 {
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86 return 3.2808f * input_meter;
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87 }
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88 }
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89
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90 uint16_t unit_depth_integer(uint16_t input_meter)
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91 {
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92 if(settingsGetPointer()->nonMetricalSystem == 0)
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93 return input_meter;
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94 else
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95 {
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96 return (input_meter * 10) / 3;
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97 }
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98 }
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99
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100 float unit_temperature_float(float input_celsius)
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101 {
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102 if(settingsGetPointer()->nonMetricalSystem == 0)
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103 return input_celsius;
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104 else
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105 {
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106 return input_celsius * (9.0f/5.0f) + 32;
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107 }
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108 }
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109
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110 uint16_t unit_speed_integer(uint16_t input_meterPerMinute)
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111 {
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112 if(settingsGetPointer()->nonMetricalSystem == 0)
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113 return input_meterPerMinute;
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114 else
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115 {
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116 return (input_meterPerMinute * 10) / 3;
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117 }
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118 }
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119
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120 /* Quelle: https://de.wikipedia.org/wiki/Luftdruck */
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121 /*
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122 const float luftdruckStartMinus300[15] =
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123 {
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124 1.0530f,
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125 1.0396f,
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126 1.0263f,
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127 1.01325f, // 0 m
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128 1.0003f,
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129 0.9876f,
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130 0.9750f,
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131 0.9625f,
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132 0.9503f,
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133 0.9381f,
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134 0.9262f,
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135 0.9144f,
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136 0.9027f,
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137 0.8912f, // 1000 m
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138 0.8358f
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139 };
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140 */
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141
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142 const int luftdruckStartMinus300[15] =
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143 {
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144 1053,
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145 1040,
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146 1026,
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147 1013, // 0 m
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148 1000,
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149 988,
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150 975,
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151 962,
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152 950,
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153 938,
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154 926,
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155 914,
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156 903,
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157 891, // 1000 m
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158 836
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159 };
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160
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161
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162 int unit_SeaLevelRelation_integer(int input_atmospheric_mbar)
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163 {
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164 int i = 0;
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165 int distance1, distance2;
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166 for(i=0;i<15;i++)
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167 {
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168 if(input_atmospheric_mbar >= luftdruckStartMinus300[i])
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169 break;
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170 }
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171
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172 if(i >= 14)
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173 return 1500;
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174 else if(i == 0)
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175 return -300;
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176 else
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177 {
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178 distance1 = input_atmospheric_mbar - luftdruckStartMinus300[i];
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179 distance2 = luftdruckStartMinus300[i-1] - input_atmospheric_mbar;
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180 if(distance2 < distance1)
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181 i -= 1;
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182 return (i*100) - 300;
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183 }
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184 }
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