sdrangel/sdrbase/util/units.h

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2.6 KiB
C++

///////////////////////////////////////////////////////////////////////////////////
// Copyright (C) 2020 Jon Beniston, M7RCE //
// //
// 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 as 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 V3 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 INCLUDE_UNITS_H
#define INCLUDE_UNITS_H
#include <cmath>
#include "export.h"
// Unit conversions
class SDRBASE_API Units
{
public:
static inline float feetToMetres(float feet)
{
return feet * 0.3048f;
}
static inline int feetToIntegerMetres(float feet)
{
return (int)std::round(feetToMetres(feet));
}
static inline float nauticalMilesToMetres(float nauticalMiles)
{
return nauticalMiles * 1855.0f;
}
static inline int nauticalMilesToIntegerMetres(float nauticalMiles)
{
return (int)std::round(nauticalMilesToMetres(nauticalMiles));
}
static float knotsToKPH(float knots)
{
return knots * 1.852f;
}
static int knotsToIntegerKPH(float knots)
{
return (int)std::round(knotsToKPH(knots));
}
static float feetPerMinToMetresPerSecond(float fpm)
{
return fpm * 0.00508f;
}
static int feetPerMinToIntegerMetresPerSecond(float fpm)
{
return (int)std::round(feetPerMinToMetresPerSecond(fpm));
}
static float degreesToRadians(float degrees)
{
return degrees * ((float)M_PI) / 180.0f;
}
static float radiansToDegress(float radians)
{
return radians * 180.0f / ((float)M_PI);
}
};
#endif // INCLUDE_UNITS_H