mlib::Point< T > Class Template Reference

Generic 2D point. More...

#include <point.h>

Public Types
typedef point_traits< T >	traits

Public Member Functions
	Point (T a, T b)
	Build a Point from a pair of T's.
	Point ()
	Default constructor.
double	azimuth (const Point< T > &P2) const
	Return azimuth from North of line this-P2.
double	angle (const Point< T > &P1, const Point< T > &P2) const
	Return inside angle P1-this-P2.
Point< T >	operator+ (const Point< T > &p) const
Point< T >	operator- (const Point< T > &p) const
Point< T >	operator* (double scalar) const
Point< T >	operator/ (double scalar) const
Point< T >	operator- () const
	unary minus operator
T	operator* (const Point< T > &p) const
	dot product operator
Point< T > &	operator+= (const Point< T > &other)
Point< T > &	operator-= (const Point< T > &other)
Point< T > &	operator*= (double scalar)
Point< T > &	operator/= (double scalar)
double	distance (const Point< T > &P2) const
	Return distance between this and P2.
double	magnitude () const
int	operator== (const Point< T > &p) const
	Return TRUE if p and this are closer than tolerance.
int	operator!= (const Point< T > &p) const
	Return TRUE if p and this apart by more than tolerance.
bool	leftof (const Point< T > &a, const Point< T > &b) const
	Return true if this is left of the line (a,b)
bool	collinear (const Point< T > &a, const Point< T > &b) const
	Return true if points a, this, b are collinear.
void	rotate (double angle)

Data Fields
T	x
T	y

Detailed Description

template<typename T>
class mlib::Point< T >

Generic 2D point.

Template class which builds a 2D point from a pair of coordinates.

It has functions to compute distance between two points, azimuth from north, as well as basic operators (comparison, I/O).

Member Function Documentation

angle()

template<class T >

double mlib::Point< T >::angle	(	const Point< T > &	P1,
		const Point< T > &	P2
	)		const

Return inside angle P1-this-P2.

0 <= angle < M_PI degenerated angles (p1 == this or p2 == this) are 0

azimuth()

template<class T >

double mlib::Point< T >::azimuth

(

const Point< T > &

P2

)

const

Return azimuth from North of line this-P2.

0<= azimuth < 2*M_PI

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The documentation for this class was generated from the following file:

• include/mlib/point.h