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science.h
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science.h
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/*
* The MIT License (MIT)
*
* Copyright (c) 2017-2018, Erik Moqvist
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* This file is part of the Simba project.
*/
#ifndef __SCIENCE_SCIENCE_H__
#define __SCIENCE_SCIENCE_H__
#include "simba.h"
#define SCIENCE_SEA_LEVEL_STANDARD_PRESSURE 101325
/**
* Initialize the science module. This function must be called before
* calling any other function in this module.
*
* The module will only be initialized once even if this function is
* called multiple times.
*
* @return zero(0) or negative error code.
*/
int science_module_init(void);
/**
* Convert given pressure to an its altitude.
*
* @param[in] pressure Pressure in Pascal.
* @param[in] pressure_at_sea_level Sea level pressure in Pascal.
*
* @return Altitude in meters, or NaN if an error occurred.
*/
float science_pressure_to_altitude(float pressure,
float pressure_at_sea_level);
/**
* Convert given altitude to an its pressure.
*
* @param[in] altitude Altitude in meters.
* @param[in] pressure_at_sea_level Sea level pressure in Pascal.
*
* @return Pressure in Pascal, or NaN if an error occurred.
*/
float science_pressure_from_altitude(float altitude,
float pressure_at_sea_level);
/**
* Convert given speed from m/s to km/h.
*
* @param[in] speed Speed in m/s.
*
* @return Speed in km/h, or NaN if an error occurred.
*/
float science_mps_to_kmph(float speed);
/**
* Convert given speed from km/h to m/s.
*
* @param[in] speed Speed in km/h.
*
* @return Speed in m/s, or NaN if an error occurred.
*/
float science_mps_from_kmph(float speed);
/**
* Convert given speed from m/s to knots.
*
* @param[in] speed Speed in m/s.
*
* @return Speed in knots, or NaN if an error occurred.
*/
float science_mps_to_knots(float speed);
/**
* Convert given speed from knots to m/s.
*
* @param[in] speed Speed in knots.
*
* @return Speed in m/s, or NaN if an error occurred.
*/
float science_mps_from_knots(float speed);
/**
* Convert given speed from m/s to mi/h.
*
* @param[in] speed Speed in m/s.
*
* @return Speed in mi/h, or NaN if an error occurred.
*/
float science_mps_to_mph(float speed);
/**
* Convert given speed from mi/h to m/s.
*
* @param[in] speed Speed in mi/h.
*
* @return Speed in m/s, or NaN if an error occurred.
*/
float science_mps_from_mph(float speed);
#endif