util/src/dr/constants.h

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// === constants.h =====================================================================================================
//                                               Sen Infrastructure
//                   Released under the Apache License v2.0 (SPDX-License-Identifier Apache-2.0).
//                                    See the LICENSE.txt file for more information.
//                   © Airbus SAS, Airbus Helicopters, and Airbus Defence and Space SAU/GmbH/SAS.
// =====================================================================================================================
 
#ifndef SEN_LIBS_UTIL_SRC_DR_CONSTANTS_H
#define SEN_LIBS_UTIL_SRC_DR_CONSTANTS_H
 
// sen
#include "sen/core/base/numbers.h"
 
namespace sen::util
{

constexpr f64 pi = 3.14159265358979323846;
constexpr f32 pif = static_cast<f32>(pi);

constexpr f64 twoPi = 2.0 * pi;

constexpr f64 halfPi = pi * 0.5;

constexpr f64 earthSemiMajorAxis = 6378137.0;

constexpr f64 earthFlattening = 1.0 / 298.257223563;

constexpr f64 eccentricitySquared = 6.69437999014e-3;

constexpr f32 epsilon = 0.1f;
 
}  // namespace sen::util
 
#endif  // SEN_LIBS_UTIL_SRC_DR_CONSTANTS_H