view Discovery/Inc/vpm.h @ 222:9b4b3decd9ba div-fixes-3

Bugfix: correct presentation error in tissues custom view The green vertical line in the N2/He bars show the inspired partial pressures of the respective gasses. Obviously, the tissue partial pressure is always lower on an initial descent, than the inspired partial pressure of the respective gas. Further, when for a given depth, the inspired partial pressure is equal to the tissue partial pressure, the tissue gets fully saturated, so the bars stop at the green line. For N2, a simple presentation error was present. As the body is always saturated with about 75% of N2 (according to the Buelmann algorithm), the tissue N2 was shifted left for that amount, but the inspired N2 line was not. So, the N2 green vertical line was too far to the right. Corrected this. Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author Jan Mulder <jlmulder@xs4all.nl>
date Fri, 29 Mar 2019 14:00:43 +0100
parents 5f11787b4f42
children 5e0bb91d4a12
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///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Inc/vpm.h
/// \brief  Varying Permeability Model (VPM) Decompression Program
/// \author Heinrichs Weikamp
/// \date   23.04.2013
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \par Copyright (c) 2014-2018 Heinrichs Weikamp gmbh
///
///     This program is free software: you can redistribute it and/or modify
///     it under the terms of the GNU General Public License as published by
///     the Free Software Foundation, either version 3 of the License, or
///     (at your option) any later version.
///
///     This program is distributed in the hope that it will be useful,
///     but WITHOUT ANY WARRANTY; without even the implied warranty of
///     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
///     GNU General Public License for more details.
///
///     You should have received a copy of the GNU General Public License
///     along with this program.  If not, see <http://www.gnu.org/licenses/>.
//////////////////////////////////////////////////////////////////////////////

#ifndef VPM_H
#define VPM_H

#include "buehlmann.h"
#include "data_central.h"

extern long vpm_time_calc_begin;
enum DECOLIST{DECOSTOPS,FUTURESTOPS,BAILOUTSTOPS, OFF = -1}; // order is important!!
enum VPM_CALC_STATUS{CALC_END, CALC_BEGIN, CALC_CRITICAL, CALC_FINAL_DECO, CALC_NULLZEIT };
//int calc_crushing_pressure(float *starting_depth, float *ending_depth, float *rate);
//void vpm_check_calc(unsigned short* stoplist);
//void vpm_init(void);
//_Bool vpm_crush(void);

//void vpm_reset_variables(void);
//_Bool vpm_build_variables_from_file(unsigned long in_sdram_start);
//int vpm_store_variables_in_sdram_for_transfer(unsigned long in_sdram_start);
//void vpm_calc_crushing_pressure(float starting_ambient_pressure, float ending_ambient_pressure, float rate);
//void vpm_deco_plan(unsigned short divetime,unsigned short * divetime_first_stop, float* first_stop_depth);

float schreiner_equation__2(float *initial_inspired_gas_pressure,float *rate_change_insp_gas_pressure,float *interval_time_minutes,  const float *gas_time_constant,float *initial_gas_pressure);

int  vpm_calc(SLifeData* pINPUT, SDiveSettings* diveSettings, SVpm* pVPM, SDecoinfo*  pDECOINFO, int calc_what);
void  vpm_saturation_after_ascent(SLifeData* input);
extern  const float helium_time_constant[16];
extern  const float nitrogen_time_constant[16];

float vpm_get_CNS(void);


#endif /* VPM_H */