grinliz::Matrix4 Class Reference

#include <glmatrix.h>

List of all members.

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Detailed Description

A 3D homogenous matrix. Although the bottom row is typically 0,0,0,1 this implementation uses the full 4x4 computation.

It uses the (unfortutate) OpenGL layout:

       (  m[0]   m[4]    m[8]   m[12] )    ( v[0])
        | m[1]   m[5]    m[9]   m[13] |    | v[1]|
 M(v) = | m[2]   m[6]   m[10]   m[14] |  x | v[2]|
       (  m[3]   m[7]   m[11]   m[15] )    ( v[3])
	

Public Member Functions
	Matrix4 ()
	Construct an identity matrix.
void	SetIdentity ()
	Set the matrix to identity.
void	SetTranslation (float _x, float _y, float _z)
	Set the translation terms.
void	SetTranslation (const Vector3F &vec)
	Set the translation terms.
void	SetXRotation (float thetaDegree)
	Set the rotation terms.
void	SetYRotation (float thetaDegree)
	Set the rotation terms.
void	SetZRotation (float thetaDegree)
	Set the rotation terms.
float	CalcRotationAroundAxis (int axis) const
	Get the rotation around the X(0), Y(1), or Z(2) axis.
void	SetScale (float scale)
	Set the scale terms.
void	SetAxisAngle (const Vector3F &axis, float angle)
	Set the matrix from an axis-angle representation.
bool	IsRotation () const
	Is this probably a rotation matrix?
void	Row (unsigned i, Vector3F *row) const
	Return a row of the matrix.
void	Col (unsigned i, Vector3F *col) const
	Return a column of the matrix.
void	Transpose (Matrix4 *transpose) const
	Transpose.
float	Determinant () const
	Determinant.
void	Adjoint (Matrix4 *adjoint) const
	Adjoint.
void	Invert (Matrix4 *inverse) const
	Invert.
void	Cofactor (Matrix4 *cofactor) const
	Cofactor.
void	ApplyScalar (float v)
	Multiply all the terms of the matrix.
Friends
void	MultMatrix4 (const Matrix4 &a, const Matrix4 &b, Matrix4 *c)
void	MultMatrix4 (const Matrix4 &a, const Vector3F &b, Vector3F *c)

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Friends And Related Function Documentation

void MultMatrix4	(	const Matrix4 &	a,
		const Matrix4 &	b,
		Matrix4 *	c
	)			[friend]

C = AB. Perform the operation in column-major form, meaning a vector as a columns. Note the target parameter is the last parameter, although it is more comfortable expressed: C = AB

void MultMatrix4	(	const Matrix4 &	a,
		const Vector3F &	b,
		Vector3F *	c
	)			[friend]

w = Mv. Multiply a vector by a matrix. A vector is a column in column-major form.

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

• glmatrix.h

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