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Adds a simple countdown timer, available as a custom view in surface and dive mode. This can be used to time safety stops, or to prebreathe a CCR (or to boil your breakfast eggs if you are so inclined). The duration of the timer is configurable from 1 second to 9:59 minutes in the System menu. The timer is started by switching to the custom view, and remaining on it until a 10 second delay has elapsed. Once the timer has started the custom view can be changed and the timer will continue running in the background. After the timer has run out 'Finished' will be shown for 10 seconds in the timer custom view, and then automatic switching of custom views (if configured) resumes. In surface mode the dive computer will not go to sleep while the timer is running, and a mini timer will be shown when the timer custom view is not showing. (mikeller)
author heinrichsweikamp
date Mon, 21 Aug 2023 17:20:07 +0200
parents bfcea6e2ab3f
children d4622533271d
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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_NDL };

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 */