view Discovery/Src/unit.c @ 498:4811f3dfaa52

Added dew parameter to enable selection of customer BigFont screens to be displayed In previous versions the available views were derived from the settings for the standard view. Direct selection for Bigfont screens was not possible
author Ideenmodellierer
date Mon, 24 Aug 2020 19:30:15 +0200
parents 5f11787b4f42
children 1c95f811967c
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line source

///////////////////////////////////////////////////////////////////////////////
/// -*- coding: UTF-8 -*-
///
/// \file   Discovery/Src/unit.c
/// \brief  input to meter/celsius or feet/farenheit
/// \author heinrichs weikamp gmbh
/// \date   24-Feb-2015
///
/// \details
///
/// $Id$
///////////////////////////////////////////////////////////////////////////////
/// \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/>.
//////////////////////////////////////////////////////////////////////////////

/* Includes ------------------------------------------------------------------*/
#include "unit.h"
#include "settings.h"

/* Exported variables --------------------------------------------------------*/

/* Private types -------------------------------------------------------------*/
uint8_t  test;

/* Private variables ---------------------------------------------------------*/

/* Private variables with external access via get_xxx() function -------------*/

/* Private function prototypes -----------------------------------------------*/

/* Announced function prototypes -----------------------------------------------*/

/* Exported functions --------------------------------------------------------*/

char unit_depth_char1_T105(void)
{
    if(settingsGetPointer()->nonMetricalSystem)
        return '\'';
    else
        return 'm';
}

char unit_depth_char2_T105(void)
{
    if(settingsGetPointer()->nonMetricalSystem)
        return ' ';
    else
        return '\004'; // 004 is nop
}

char unit_depth_char1(void)
{
    if(settingsGetPointer()->nonMetricalSystem)
        return 'f';
    else
        return 'm';
}

char unit_depth_char2(void)
{
    if(settingsGetPointer()->nonMetricalSystem)
        return 't';
    else
        return '\004'; // 004 is nop
}

float unit_depth_float(float input_meter)
{
    if(settingsGetPointer()->nonMetricalSystem == 0)
        return input_meter;
    else
    {
        return 3.2808f * input_meter;
    }
}

uint16_t unit_depth_integer(uint16_t input_meter)
{
    if(settingsGetPointer()->nonMetricalSystem == 0)
        return input_meter;
    else
    {
        return (input_meter * 10) / 3;
    }
}

float unit_temperature_float(float input_celsius)
{
    if(settingsGetPointer()->nonMetricalSystem == 0)
        return input_celsius;
    else
    {
        return input_celsius * (9.0f/5.0f) + 32;
    }
}

uint16_t unit_speed_integer(uint16_t input_meterPerMinute)
{
    if(settingsGetPointer()->nonMetricalSystem == 0)
        return input_meterPerMinute;
    else
    {
        return (input_meterPerMinute * 10) / 3;
    }
}

/* Quelle: https://de.wikipedia.org/wiki/Luftdruck */
/*
const float luftdruckStartMinus300[15] =
{
    1.0530f,
    1.0396f,
    1.0263f,
    1.01325f, // 0 m
    1.0003f,
    0.9876f,
    0.9750f,
    0.9625f,
    0.9503f,
    0.9381f,
    0.9262f,
    0.9144f,
    0.9027f,
    0.8912f, // 1000 m
    0.8358f
};
*/

const int luftdruckStartMinus300[15] =
{
    1053,
    1040,
    1026,
    1013, // 0 m
    1000,
     988,
     975,
     962,
     950,
     938,
     926,
     914,
     903,
     891, // 1000 m
     836
};


int unit_SeaLevelRelation_integer(int input_atmospheric_mbar)
{
    int i = 0;
    int distance1, distance2;
    for(i=0;i<15;i++)
    {
        if(input_atmospheric_mbar >= luftdruckStartMinus300[i])
            break;
    }

    if(i >= 14)
        return 1500;
    else if(i == 0)
        return -300;
    else
    {
        distance1 = input_atmospheric_mbar - luftdruckStartMinus300[i];
        distance2 = luftdruckStartMinus300[i-1] - input_atmospheric_mbar;
        if(distance2 < distance1)
            i -= 1;
        return (i*100) - 300;
    }
}