mat2 Class Reference

2x2 double matrix More...

#include <glslmath.h>

Public Member Functions
	mat2 (double diag=1.0)
	default constructor
	mat2 (const vec2 &diag)
	custom constructor
	mat2 (const vec2 &r1, const vec2 &r2)
	custom constructor
	mat2 (const mat2f &m)
	copy constructor
vec2	operator[] (const int i) const
	subscript operator (column getter)
vec2	row (const int i) const
	row getter
vec2	col (const int i) const
	column getter
const double *	c_ptr () const
	const pointer to column-major array
	operator const double * () const
	cast operator to column-major array
void	fromOpenGL (const double m[4])
	convert from 4-element column-major OpenGL matrix
double	det () const
	calculate determinant of 2x2 matrix
mat2	transpose () const
	transpose 2x2 matrix
mat2	invert () const
	invert 2x2 matrix
mat2 &	operator+= (const mat2 &m)
	inplace addition
mat2 &	operator*= (const mat2 &m)
	inplace multiplication
mat2 &	operator<<= (const mat2 &m)
	inplace multiplication (left-hand side)
mat2 &	operator>>= (const mat2 &m)
	inplace multiplication (right-hand side)
	operator std::string ()
	string cast operator

Static Public Member Functions
static mat2	columns (const vec2 &c1, const vec2 &c2)
	construct matrix from column vectors
static mat2	columns (double a, double b, double c, double d)
	construct matrix from column vectors
static mat2	rows (const vec2 &r1, const vec2 &r2)
	construct matrix from row vectors
static mat2	rows (double a, double b, double c, double d)
	construct matrix from row vectors
static double	det (const mat2 &m)
	static version of determinant operation
static mat2	transpose (const mat2 &m)
	static version of transpose operation
static mat2	invert (const mat2 &m)
	static version of invert operation
static mat2	scale (double s, double t)
	create scaling matrix
static mat2	scale (const vec2 &c)
	create scaling matrix
static mat2	rotate (double angle)
	create rotation matrix More...

Protected Attributes
union {
};
	matrix elements

Detailed Description

2x2 double matrix

• definition of matrix via constructor taking two row vectors
• supplies matrix operators + and *

Member Function Documentation

rotate()

static mat2 mat2::rotate ( double  angle )

inlinestatic

create rotation matrix

• rotation angle is specified clockwise

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

• glslmath.h