geo.hpp File Reference

Utilities for working with angles. More...

Utilities for working with angles.

Author

Jared R. Males

Definition in file geo.hpp.

#include <vector>
#include <cmath>
#include "constants.hpp"

Go to the source code of this file.

Classes
struct	mx::math::degradT< degrees, _realT >
	Type holding constants related to angle calculations in degrees. More...
struct	mx::math::degradT< radians, _realT >
	Type holding constants related to angle calculations in radians. More...

Namespaces
namespace	mx
	The mxlib c++ namespace.

Macros
#define	semilatrect(a, e)    ( e == 0.0 ? a : ( e == 1.0 ? 2. * a : ( e < 1. ? a * ( 1 - e * e ) : a * ( e * e - 1 ) ) ) )
	Calculate the semi-latus rectum of a conic section
#define	focus(a, e)    ( e == 0.0 ? 1e34 : ( e == 1.0 ? 2. * a : ( e < 1. ? a * ( 1 - e * e ) / e : a * ( e * e - 1 ) / e ) ) )
	Calculate the focal parameter of a conic section
#define	semimaj(p, e)   ( e == 1.0 ? 1e34 : ( e < 1 ? p * e / ( 1 - e * e ) : p * e / ( e * e - 1 ) ) )
#define	eccent(a, p)

Functions
template<typename realT >
realT	mx::math::dtor (realT q)
	Convert from degrees to radians.
template<typename realT >
realT	mx::math::rtod (realT q)
	Convert from radians to degrees.
template<class angleT >
angleT::realT	mx::math::angleMod (typename angleT::realT q)
	Calculate the angle modulo full-circle, normalizing to a positive value.
template<class angleT >
angleT::realT	mx::math::angleDiff (typename angleT::realT q1, typename angleT::realT q2)
	Calculate the difference between two angles, correctly across 0/360.
template<class angleT >
angleT::realT	mx::math::angleMean (const std::vector< typename angleT::realT > &q)
	Calculate the mean of a set of angles, correctly across 0/360.
template<int degrad = 0, typename realT >
int	mx::math::continueAngles (std::vector< realT > &angles, realT threshold=0.75)
	Make a vector of angles continuous, fixing the 0/360 crossing.
template<typename realT >
void	mx::math::rotatePoint (realT &x0, realT &y0, realT angle)
	Rotate a point about the origin.