sgMatrix4x4 Class Reference

#include <sgMatrix4x4.h>

Public Member Functions
	sgMatrix4x4 ()
	sgMatrix4x4 (const sgMatrix4x4 &other)
	sgMatrix4x4 (float *other)
bool	operator== (const sgMatrix4x4 &other)
bool	operator!= (const sgMatrix4x4 &other)
sgMatrix4x4 &	operator= (const sgMatrix4x4 &other)
sgMatrix4x4 &	operator= (float *other)
sgMatrix4x4	operator* (const sgMatrix4x4 &other)
sgMatrix4x4 &	operator*= (const sgMatrix4x4 &other)
sgVector4	operator* (const sgVector4 &other)
sgVector3	operator* (const sgVector3 &other)
void	set (float *other)
void	makeIdentity ()
void	makeProjectionOrtho (float left, float right, float bottom, float top, float clipnear, float clipfar)
void	makeProjectionPersp (float arc, float aspect, float clipnear, float clipfar)
void	makeTranslate (const sgVector4 &trans)
void	makeTranslate (const sgVector3 &trans)
void	makeScale (const sgVector4 &scal)
void	makeScale (const sgVector3 &scal)
void	makeRotate (const sgVector4 &rot)
void	makeRotate (const sgVector3 &rot)
void	makeRotate (const sgQuaternion &rot)
void	translate (const sgVector4 &trans)
void	translate (const sgVector3 &trans)
void	scale (const sgVector4 &scal)
void	scale (const sgVector3 &scal)
void	rotate (const sgVector4 &rot)
void	rotate (const sgVector3 &rot)
void	rotate (const sgQuaternion &rot)
void	transpose ()
sgVector4	transform (const sgVector4 &other)
sgVector3	transform (const sgVector3 &other)
Public Attributes
float	mat [16]

Detailed Description

Matrix class. Stores a 4x4 matrix and provides functionality for it. A matrix is stored as column major!

Constructor & Destructor Documentation

sgMatrix4x4::sgMatrix4x4 ( )

Constructor. Initializes a new instance as identity matrix.

sgMatrix4x4::sgMatrix4x4 ( const sgMatrix4x4 & other )

Constructor. Initializes a new instance from the given matrix.

Parameters:

other

the other matrix to copy the values from

sgMatrix4x4::sgMatrix4x4 ( float * other )

Constructor. Initializes a new instance from a matrix given by an array.

Parameters:

other

pointer to the first element of the matrix array (column major!)

Member Function Documentation

void sgMatrix4x4::makeIdentity ( )

Make identity matrix. Sets the matrix to the identity matrix.

void sgMatrix4x4::makeProjectionOrtho	(	float	left,
		float	right,
		float	bottom,
		float	top,
		float	clipnear,
		float	clipfar
	)

Make orthogonal projection matrix. Sets the matrix to the orthogonal projection matrix defined by the parameters.

Parameters:

	left	the left clipping plane
	right	the right clipping plane
	bottom	the bottom clipping plane
	top	the top clipping plane
	clipnear	the near clipping plane
	clipfar	the far clipping plane

void sgMatrix4x4::makeProjectionPersp	(	float	arc,
		float	aspect,
		float	clipnear,
		float	clipfar
	)

Make perspective projection matrix. Sets the matrix to the perspective projection matrix defined by the parameters.

Parameters:

	arc	the horizontal opening angle of the camera
	aspect	the aspect ratio
	clipnear	the near clipping plane
	clipfar	the far clipping plane

void sgMatrix4x4::makeRotate ( const sgQuaternion & rot )

Make rotation matrix. Sets the matrix to the rotation defined by the parameter.

Parameters:

rot

the rotation to create a transformation matrix for as quaternion

void sgMatrix4x4::makeRotate ( const sgVector3 & rot )

Make rotation matrix. Sets the matrix to the rotation defined by the parameter.

Parameters:

rot

the rotation to create a transformation matrix for as euler angles

void sgMatrix4x4::makeRotate ( const sgVector4 & rot )

Make rotation matrix. Sets the matrix to the rotation defined by the parameter.

Parameters:

rot

the rotation to create a transformation matrix for in axis angle format

void sgMatrix4x4::makeScale ( const sgVector3 & scal )

Make scale matrix. Sets the matrix to the scaling defined by the parameter.

Parameters:

scal

the scale to create a transformation matrix for

void sgMatrix4x4::makeScale ( const sgVector4 & scal )

Make scale matrix. Sets the matrix to the scaling defined by the parameter.

Parameters:

scal

the scale to create a transformation matrix for

void sgMatrix4x4::makeTranslate ( const sgVector3 & trans )

Make translation matrix. Sets the matrix to the translation defined by the parameter.

Parameters:

trans

the translation to create a transformation matrix for

void sgMatrix4x4::makeTranslate ( const sgVector4 & trans )

Make translation matrix. Sets the matrix to the translation defined by the parameter.

Parameters:

trans

the translation to create a transformation matrix for

bool sgMatrix4x4::operator!= ( const sgMatrix4x4 & other )

Not equal. Checks if two instances do not equal each other.

sgVector3 sgMatrix4x4::operator* ( const sgVector3 & other )

Multiply. Transforms the vector with the matrix, by multiplying them with the matrix on the left.

sgVector4 sgMatrix4x4::operator* ( const sgVector4 & other )

Multiply. Transforms the vector with the matrix, by multiplying them with the matrix on the left.

sgMatrix4x4 sgMatrix4x4::operator* ( const sgMatrix4x4 & other )

Multiply. Multiply the two matrices.

sgMatrix4x4 & sgMatrix4x4::operator*= ( const sgMatrix4x4 & other )

Multiply. Multiply the two matrices.

sgMatrix4x4 & sgMatrix4x4::operator= ( float * other )

Copy. Copy the values from the matrix array (column major!) to the matrix.

sgMatrix4x4 & sgMatrix4x4::operator= ( const sgMatrix4x4 & other )

Copy. Copy the values of one instance to the other.

bool sgMatrix4x4::operator== ( const sgMatrix4x4 & other )

Equal. Checks if two instances equal each other.

void sgMatrix4x4::rotate ( const sgQuaternion & rot )

Rotate the matrix. Applies the rotation given by the parameter to the matrix.

Parameters:

rot

the translation to apply as quaternion

void sgMatrix4x4::rotate ( const sgVector3 & rot )

Rotate the matrix. Applies the rotation given by the parameter to the matrix.

Parameters:

rot

the translation to apply as euler angles

void sgMatrix4x4::rotate ( const sgVector4 & rot )

Rotate the matrix. Applies the rotation given by the parameter to the matrix.

Parameters:

rot

the translation to apply in axis angle format

void sgMatrix4x4::scale ( const sgVector3 & scal )

Scale the matrix. Applies the scaling given by the parameter to the matrix.

Parameters:

scal

the scaling to apply

void sgMatrix4x4::scale ( const sgVector4 & scal )

Scale the matrix. Applies the scaling given by the parameter to the matrix.

Parameters:

scal

the scaling to apply

void sgMatrix4x4::set ( float * other )

Set to array. Copy the values from the given matrix array (column major!) to the matrix.

Parameters:

other

pointer to first element of the matrix array

sgVector3 sgMatrix4x4::transform ( const sgVector3 & other )

Transform. Transforms a vector with the matrix by multiplying them with the matrix on the left.

Parameters:

other

the vector to transform

sgVector4 sgMatrix4x4::transform ( const sgVector4 & other )

Transform. Transforms a vector with the matrix by multiplying them with the matrix on the left.

Parameters:

other

the vector to transform

void sgMatrix4x4::translate ( const sgVector3 & trans )

Translate the matrix. Applies the translation given by the parameter to the matrix.

Parameters:

trans

the translation to apply

void sgMatrix4x4::translate ( const sgVector4 & trans )

Translate the matrix. Applies the translation given by the parameter to the matrix.

Parameters:

trans

the translation to apply

void sgMatrix4x4::transpose ( )

Transpose. Swap columns and rows.

Member Data Documentation

float sgMatrix4x4::mat[16]

Matrix array. Array of the matrix components as column major.

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

iSDGE/Engine/Common/sgMatrix4x4.h
iSDGE/Engine/Common/sgMatrix4x4.mm

sgMatrix4x4 Class Reference

Public Member Functions

Public Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation