angle.hpp

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/*--------------------------------------------------------------*
  Copyright (C) 2021 Rudy Castan
 
  This file is distributed WITHOUT ANY WARRANTY. See the file
  `License.md' for details.
*--------------------------------------------------------------*/
#pragma once
 
 
namespace doodle
{
    constexpr double PI = 3.1415926535897932384626433832795028;
    constexpr double HALF_PI = PI / 2.0;
    constexpr double QUARTER_PI = PI / 4.0;
    constexpr double TWO_PI = 2.0 * PI;
 
    constexpr double to_radians(double angle_in_degrees) noexcept { return angle_in_degrees * PI / 180.0; }
    constexpr double to_degrees(double angle_in_radians) noexcept { return angle_in_radians * 180.0 / PI; }
 
}