Header file for the 3x3 matrix library. More...

Classes
struct	AEMtx33

Macros
#define	AEMtx33RowCol(pMtx, row, col) (pMtx)->m[(row)][(col)]

Typedefs
typedef struct AEMtx33	AEMtx33

Functions
void	AEMtx33Identity (AEMtx33 *pResult)
	Set pResult to identity matrix. More...

void	AEMtx33Transpose (AEMtx33 pResult, AEMtx33 pMtx)
	Set pResult to the transpose of pMtx. More...

f32	AEMtx33Inverse (AEMtx33 pResult, AEMtx33 pMtx)
	Set pResult to the inverse of pMtx. More...

void	AEMtx33InvTranspose (AEMtx33 pResult, AEMtx33 pMtx)
	Set pResult to the transpose of the inverse of pMtx. More...

void	AEMtx33Concat (AEMtx33 pResult, AEMtx33 pMtx0, AEMtx33 *pMtx1)
	Set pResult to the multiplication of pMtx0 with pMtx1. More...

void	AEMtx33Orthogonalize (AEMtx33 pResult, AEMtx33 pMtx)
	Set pResult to the orthogonalization of pMtx. More...

f32	AEMtx33Determinant (AEMtx33 *pMtx)
	Calculate the determinant of pMtx. More...

void	AEMtx33SetCol (AEMtx33 pResult, u32 col, AEVec2 pVec)
	Set the first and second element of the selected column of pResult to the x and y values of pVec respectively. The last element of the column will be set automatically. More...

void	AEMtx33SetRow (AEMtx33 pResult, u32 row, AEVec2 pVec)
	Set the first and second element of the selected row of pResult to the x and y values of pVec respectively. The last element of the row will be set automatically. More...

void	AEMtx33GetCol (AEVec2 pResult, AEMtx33 pMtx, u32 col)
	Set the x and y values of pResult with the first and second element of the selected column of pMtx respectively. More...

void	AEMtx33GetRow (AEVec2 pResult, AEMtx33 pMtx, u32 row)

void	AEMtx33Trans (AEMtx33 *pResult, f32 x, f32 y)
	Set pResult to the translation matrix of x and y. More...

void	AEMtx33TransApply (AEMtx33 pResult, AEMtx33 pMtx, f32 x, f32 y)
	Set pResult to the multiplication of translation matrix of x and y with pMtx. More...

void	AEMtx33Scale (AEMtx33 *pResult, f32 x, f32 y)
	Set pResult to the scaling matrix of x and y. More...

void	AEMtx33ScaleApply (AEMtx33 pResult, AEMtx33 pMtx, f32 x, f32 y)
	Set pResult to the multiplication of scaling matrix of x and y with pMtx. More...

void	AEMtx33Rot (AEMtx33 *pResult, f32 angle)
	Set pResult to the rotation matrix of angle in radians rotating counter-clockwise. More...

void	AEMtx33RotDeg (AEMtx33 *pResult, f32 angle)
	Set pResult to the rotation matrix of angle in degrees rotating counter-clockwise. More...

void	AEMtx33MultVec (AEVec2 pResult, AEMtx33 pMtx, AEVec2 *pVec)
	Set pResult to the multiplication of pMtx with pVec. More...

void	AEMtx33MultVecArray (AEVec2 pResult, AEMtx33 pMtx, AEVec2 *pVec, u32 count)
	Set an array of vectors (pResult) to the multiplication of pMtx with an array of vectors (pVec) of size (count). More...

void	AEMtx33MultVecSR (AEVec2 pResult, AEMtx33 pMtx, AEVec2 *pVec)

void	AEMtx33MultVecArraySR (AEVec2 pResult, AEMtx33 pMtx, AEVec2 *pVec, u32 count)

Detailed Description

Header file for the 3x3 matrix library.

Project: Alpha Engine

Author: Sun Tjen Fam

Date: January 31, 2008

Copyright: Copyright (C) 2013 DigiPen Institute of Technology. Reproduction or disclosure of this file or its contents without the prior written consent of DigiPen Institute of Technology is prohibited.

Definition in file AEMtx33.h.

Macro Definition Documentation

#define AEMtx33RowCol	(	pMtx,
		row,
		col
	)	(pMtx)->m[(row)][(col)]

Definition at line 23 of file AEMtx33.h.

Typedef Documentation

typedef struct AEMtx33 AEMtx33

Matrix is stored in column major format, ie. the translation term is in the right most column.

m[0][0] m[0][1] m[0][2]
m[1][0] m[1][1] m[1][2]
m[2][0] m[2][1] m[2][2]

Function Documentation

void AEMtx33Concat	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx0,
		AEMtx33 *	pMtx1
	)

Set pResult to the multiplication of pMtx0 with pMtx1.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx0	Pointer to AEMtx33 for input.
[in]	pMtx1	Pointer to AEMtx33 for input.

Return values

void	No return.

f32 AEMtx33Determinant ( AEMtx33 * pMtx )

Calculate the determinant of pMtx.

Parameters

[in] pMtx Pointer to AEMtx33 for input.

Return values

f32	Returns the determinant of pMtx.

void AEMtx33GetCol	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		u32	col
	)

Set the x and y values of pResult with the first and second element of the selected column of pMtx respectively.

Parameters

[out]	pResult	Pointer to AEVec2 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.
[in]	col	The selected column of pResult.

Return values

void	No return.

void AEMtx33GetRow	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		u32	row
	)

void AEMtx33Identity ( AEMtx33 * pResult )

Set pResult to identity matrix.

Parameters

[out] pResult Pointer to AEMtx33 to be set.

Return values

void	No return.

f32 AEMtx33Inverse	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx
	)

Set pResult to the inverse of pMtx.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.

Return values

f32	Returns the determinant of pMtx.

void AEMtx33InvTranspose	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx
	)

Set pResult to the transpose of the inverse of pMtx.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.

Return values

void	No return.

void AEMtx33MultVec	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		AEVec2 *	pVec
	)

Set pResult to the multiplication of pMtx with pVec.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.
[in]	pVec	Pointer to AEVec2 for input.

Return values

void	No return.

void AEMtx33MultVecArray	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		AEVec2 *	pVec,
		u32	count
	)

Set an array of vectors (pResult) to the multiplication of pMtx with an array of vectors (pVec) of size (count).

Warning: Size of pResult should be not less than count.

Parameters

[out]	pResult	Pointer to an array of AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.
[in]	pVec	Pointer to an array of AEVec2 for input.
[in]	count	Number of elements in pVec to be multiplied.

Return values

void	No return.

void AEMtx33MultVecArraySR	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		AEVec2 *	pVec,
		u32	count
	)

void AEMtx33MultVecSR	(	AEVec2 *	pResult,
		AEMtx33 *	pMtx,
		AEVec2 *	pVec
	)

void AEMtx33Orthogonalize	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx
	)

Set pResult to the orthogonalization of pMtx.

Warning: Function not implemented.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.

Return values

void	No return.

void AEMtx33Rot	(	AEMtx33 *	pResult,
		f32	angle
	)

Set pResult to the rotation matrix of angle in radians rotating counter-clockwise.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	angle	Angle in radians rotating counter-clockwise.

Return values

void	No return.

void AEMtx33RotDeg	(	AEMtx33 *	pResult,
		f32	angle
	)

Set pResult to the rotation matrix of angle in degrees rotating counter-clockwise.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	angle	Angle in degress rotating counter-clockwise.

Return values

void	No return.

void AEMtx33Scale	(	AEMtx33 *	pResult,
		f32	x,
		f32	y
	)

Set pResult to the scaling matrix of x and y.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	x	Scaling along the x-axis.
[in]	y	Scaling along the y-axis.

Return values

void	No return.

void AEMtx33ScaleApply	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx,
		f32	x,
		f32	y
	)

Set pResult to the multiplication of scaling matrix of x and y with pMtx.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.
[in]	x	Scaling along the x-axis.
[in]	y	Scaling along the y-axis.

Return values

void	No return.

void AEMtx33SetCol	(	AEMtx33 *	pResult,
		u32	col,
		AEVec2 *	pVec
	)

Set the first and second element of the selected column of pResult to the x and y values of pVec respectively. The last element of the column will be set automatically.

Parameters

[in,out]	pResult	Pointer to AEMtx33 to be set.
[in]	col	The selected column of pResult.
[in]	pVec	Pointer to AEVec2 for input.

Return values

void	No return.

void AEMtx33SetRow	(	AEMtx33 *	pResult,
		u32	row,
		AEVec2 *	pVec
	)

Set the first and second element of the selected row of pResult to the x and y values of pVec respectively. The last element of the row will be set automatically.

Parameters

[in,out]	pResult	Pointer to AEMtx33 to be set.
[in]	row	The selected row of pResult.
[in]	pVec	Pointer to AEVec2 for input.

Return values

void	No return.

void AEMtx33Trans	(	AEMtx33 *	pResult,
		f32	x,
		f32	y
	)

Set pResult to the translation matrix of x and y.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	x	Translation along the x-axis.
[in]	y	Translation along the y-axis.

Return values

void	No return.

void AEMtx33TransApply	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx,
		f32	x,
		f32	y
	)

Set pResult to the multiplication of translation matrix of x and y with pMtx.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.
[in]	x	Translation along the x-axis.
[in]	y	Translation along the y-axis.

Return values

void	No return.

void AEMtx33Transpose	(	AEMtx33 *	pResult,
		AEMtx33 *	pMtx
	)

Set pResult to the transpose of pMtx.

Parameters

[out]	pResult	Pointer to AEMtx33 to be set.
[in]	pMtx	Pointer to AEMtx33 for input.

Return values

void	No return.

Alpha Engine: AEMtx33.h File Reference

AlphaEngine

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Macros

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Detailed Description

Macro Definition Documentation

Typedef Documentation

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