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/*
Copyright (C) 2001-2006, William Joseph.
All Rights Reserved.
This file is part of GtkRadiant.
GtkRadiant 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 2 of the License, or
(at your option) any later version.
GtkRadiant 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 GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
namespace math
{
const double PI = 3.1415926535897932384626433832795;
}
const double c_half_pi = math::PI / 2;
const double c_2pi = 2 * math::PI;
const double c_DEG2RADMULT = math::PI / 180.0;
const double c_RAD2DEGMULT = 180.0 / math::PI;
inline double radians_to_degrees(double radians)
{
return radians * c_RAD2DEGMULT;
}
inline double degrees_to_radians(double degrees)
{
return degrees * c_DEG2RADMULT;
}
namespace math
{
/// Class representing an angle in degrees
class Degrees
{
double _value;
public:
/// Construct with an angle in degrees
explicit Degrees(double v): _value(v)
{}
/// Get the angle in degrees
double asDegrees() const { return _value; }
/// Get the angle in radians
double asRadians() const { return degrees_to_radians(_value); }
};
/// Class representing an angle in radians
struct Radians
{
double _value;
public:
/// Construct with an angle in radians
explicit Radians(double v): _value(v)
{}
/// Get the angle in degrees
double asDegrees() const { return radians_to_degrees(_value); }
/// Get the angle in radians
double asRadians() const { return _value; }
};
}
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