GCS::GMatrix44 Class Reference

Provides a 4x4 matrix and various mathematical matrix operations. More...

#include <GMatrix44.h>

Collaboration diagram for GCS::GMatrix44:

[legend]List of all members.

Public Member Functions
	GMatrix44 ()
	GMatrix44 (double _m11, double _m12, double _m13, double _m14, double _m21, double _m22, double _m23, double _m24, double _m31, double _m32, double _m33, double _m34, double _m41, double _m42, double _m43, double _m44)
	GMatrix44 (const GMatrix44 &original)
	operator double * ()
GMatrix44 &	loadIdentity ()
GMatrix44	multiply (double scalar) const
GMatrix44	multiply (const GMatrix44 &m) const
GVector3	transform (const GVector3 &v) const
GMatrix44	operator+ (const GMatrix44 &m) const
GMatrix44	operator- (const GMatrix44 &m) const
GMatrix44	operator * (const GMatrix44 &m) const
GMatrix44	operator * (const double scalar) const
bool	operator== (const GMatrix44 &m) const
bool	operator!= (const GMatrix44 &m) const
Static Public Member Functions
static GMatrix44	createIdentityMatrix ()
static GMatrix44	createScaleMatrix (double scalar)
static GMatrix44	createScaleMatrix (const GVector3 &v)
static GMatrix44	createTranslationMatrix (const GVector3 &v)
static GMatrix44	createRotationAroundX (double angle_rad)
static GMatrix44	createRotationAroundY (double angle_rad)
static GMatrix44	createRotationAroundZ (double angle_rad)
static GMatrix44	createRotationAroundAxis (const GVector3 &v, double angle_rad)
static GMatrix44	createFromOpenGL (float *values)
Public Attributes
union {
struct {
double   m11
double   m12
double   m13
double   m14
double   m21
double   m22
double   m23
double   m24
double   m31
double   m32
double   m33
double   m34
double   m41
double   m42
double   m43
double   m44
}
double   m [4][4]
double   n [16]
};

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Detailed Description

Provides a 4x4 matrix and various mathematical matrix operations.

Author:

Raphael Langerhorst

Gerald Degeneve

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Constructor & Destructor Documentation

GCS::GMatrix44::GMatrix44

(

)

Default constructor initializes the matrix with an identity matrix.

GCS::GMatrix44::GMatrix44	(	double	_m11,
		double	_m12,
		double	_m13,
		double	_m14,
		double	_m21,
		double	_m22,
		double	_m23,
		double	_m24,
		double	_m31,
		double	_m32,
		double	_m33,
		double	_m34,
		double	_m41,
		double	_m42,
		double	_m43,
		double	_m44
	)

Constructor initializing with given elements.

GCS::GMatrix44::GMatrix44

(

const GMatrix44 &

original

)

Copy constructor.

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Member Function Documentation

GMatrix44 GCS::GMatrix44::createFromOpenGL

(

float *

values

)

[static]

Creates a GMatrix44 object from given float array, interpreted as [col][row] The array must be at least have 16 elements.

GMatrix44 GCS::GMatrix44::createIdentityMatrix

(

)

[static]

Returns:

an identity matrix.

GMatrix44 GCS::GMatrix44::createRotationAroundAxis	(	const GVector3 &	v,
		double	angle_rad
	)			[static]

Returns:

a rotation matrix that turns for given angle around given axis.

Parameters:

angle_rad

angle to rotate in radians (2*pi for a full turn)

GMatrix44 GCS::GMatrix44::createRotationAroundX

(

double

angle_rad

)

[static]

Parameters:

angle_rad

angle in radians.

Returns:

a rotation matrix, turning for given angle around x axis.

GMatrix44 GCS::GMatrix44::createRotationAroundY

(

double

angle_rad

)

[static]

Same as above but for the Y axis.

GMatrix44 GCS::GMatrix44::createRotationAroundZ

(

double

angle_rad

)

[static]

Same as above but for the Y axis.

GMatrix44 GCS::GMatrix44::createScaleMatrix

(

const GVector3 &

v

)

[static]

Returns:

a scale matrix with different scaling for x, y and z.

GMatrix44 GCS::GMatrix44::createScaleMatrix

(

double

scalar

)

[static]

Returns:

a scale matrix with equal scaling for x, y and z.

GMatrix44 GCS::GMatrix44::createTranslationMatrix

(

const GVector3 &

v

)

[static]

Returns:

a translation matrix for given vector.

GMatrix44 & GCS::GMatrix44::loadIdentity

(

)

Converts this matrix into an identity matrix and returns this matrix.

GMatrix44 GCS::GMatrix44::multiply

(

const GMatrix44 &

m

)

const

Multiplies (transforms) this matrix with given matrix, stores the result in a new matrix and returns it.

GMatrix44 GCS::GMatrix44::multiply

(

double

scalar

)

const

Multiplies (scales) this matrix with given scalar, stores the result in a new matrix and returns it.

GMatrix44 GCS::GMatrix44::operator *

(

const double

scalar

)

const

Multiplies (scales) this matrix with given scalar, stores the result in a new matrix and returns it.

GMatrix44 GCS::GMatrix44::operator *

(

const GMatrix44 &

m

)

const

Multiplies (transforms) this matrix with given matrix, stores the result in a new matrix and returns it.

GCS::GMatrix44::operator double *

(

)

Casting Operator.

bool GCS::GMatrix44::operator!=

(

const GMatrix44 &

m

)

const [inline]

Compares a this Matrix with another.

Returns:

true when matrices are different.

GMatrix44 GCS::GMatrix44::operator+

(

const GMatrix44 &

m

)

const

Adds a matrix to the given matrix and return a new Matrix.

GMatrix44 GCS::GMatrix44::operator-

(

const GMatrix44 &

m

)

const

Subtracts a matrix from the given matrix and return a new Matrix.

bool GCS::GMatrix44::operator==

(

const GMatrix44 &

m

)

const [inline]

Compares a this Matrix with another.

Returns:

true when matrices are equal.

GVector3 GCS::GMatrix44::transform

(

const GVector3 &

v

)

const

Transforms given vector with this matrix and return a new transformed vector.

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Member Data Documentation

union { ... }

This union represents all elements of the matrix in three variations.

double GCS::GMatrix44::m[4][4]

The field that represents all elements of the matrix interpreted as [rows][columns].

double GCS::GMatrix44::n[16]

The field that represents all elements of the matrix interpreted as [row*4+column].

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

• GMatrix44.h
• GMatrix44.cpp

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