4x4 Matrices in floating point

---

Matrix definition and operations.

Functions
Eina_Matrix_Type	eina_matrix4_type_get (const Eina_Matrix4 *m)
	Returns the type of the given floating point matrix.
void	eina_matrix4_values_set (Eina_Matrix4 *m, double xx, double xy, double xz, double xw, double yx, double yy, double yz, double yw, double zx, double zy, double zz, double zw, double wx, double wy, double wz, double ww)
	Sets the values of the coefficients of the given floating point matrix.
void	eina_matrix4_values_get (const Eina_Matrix4 *m, double *xx, double *xy, double *xz, double *xw, double *yx, double *yy, double *yz, double *yw, double *zx, double *zy, double *zz, double *zw, double *wx, double *wy, double *wz, double *ww)
	Gets the values of the coefficients of the given floating point matrix.
double	eina_matrix4_determinant (const Eina_Matrix4 *m)
	Returns the determinant of the given matrix.
Eina_Bool	eina_matrix4_normalized (Eina_Matrix4 *out, const Eina_Matrix4 *in)
	Returns the determinant of the given matrix.
Eina_Bool	eina_matrix4_inverse (Eina_Matrix4 *out, const Eina_Matrix4 *in)
	Returns the inverse of the given matrix.
void	eina_matrix4_transpose (Eina_Matrix4 *out, const Eina_Matrix4 *in)
	Returns the transpose of the given matrix.
void	eina_matrix4_matrix3_to (Eina_Matrix3 *m3, const Eina_Matrix4 *m4)
	Converts an Eina_Matrix4 into an Eina_Matrix3.
void	eina_matrix4_identity (Eina_Matrix4 *out)
	Sets an identity matrix.
void	eina_matrix4_multiply_copy (Eina_Matrix4 *out, const Eina_Matrix4 *mat_a, const Eina_Matrix4 *mat_b)
	Multiplies two matrix.
void	eina_matrix4_array_set (Eina_Matrix4 *m, const double *v)
	Sets array to matrix.
void	eina_matrix4_copy (Eina_Matrix4 *dst, const Eina_Matrix4 *src)
	Copies matrix.
void	eina_matrix4_multiply (Eina_Matrix4 *out, const Eina_Matrix4 *mat_a, const Eina_Matrix4 *mat_b)
	Multiplies two matrix with check.
void	eina_matrix4_ortho_set (Eina_Matrix4 *m, double left, double right, double bottom, double top, double dnear, double dfar)
	Sets orthogonality matrix.
Typedefs
typedef struct _Eina_Matrix4	Eina_Matrix4

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Typedef Documentation

Eina_Matrix4

Floating point matrix4 handler

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Function Documentation

void eina_matrix4_array_set	(	Eina_Matrix4 *	m,
		const double *	v
	)

Sets array to matrix.

Parameters:

m	The result matrix
v	The the array[16] for set

Set to matrix first 16 elements from array

Since (EFL) :

1.17

Since :

3.0

void eina_matrix4_copy	(	Eina_Matrix4 *	dst,
		const Eina_Matrix4 *	src
	)

Copies matrix.

Parameters:

dst	The matrix copy
src	The matrix for copy.

Since (EFL) :

1.17

Since :

3.0

double eina_matrix4_determinant

(

const Eina_Matrix4 *

m

)

Returns the determinant of the given matrix.

Parameters:

m	The matrix.

Returns:

The determinant.

This function returns the determinant of the matrix m. No check is done on m.

Since (EFL) :

1.16

Since :

3.0

void eina_matrix4_identity

(

Eina_Matrix4 *

out

)

Sets an identity matrix.

Parameters:

out	The matrix to set

Since (EFL) :

1.16

Since :

3.0

Eina_Bool eina_matrix4_inverse	(	Eina_Matrix4 *	out,
		const Eina_Matrix4 *	in
	)

Returns the inverse of the given matrix.

Parameters:

out	The inverse matrix
in	The matrix.

Returns:

EINA_TRUE on success, EINA_FALSE otherwise.

Since (EFL) :

1.16

Since :

3.0

void eina_matrix4_matrix3_to	(	Eina_Matrix3 *	m3,
		const Eina_Matrix4 *	m4
	)

Converts an Eina_Matrix4 into an Eina_Matrix3.

Parameters:

m3	The destination Eina_Matrix3.
m4	The source Eina_Matrix4.

Since (EFL) :

1.15

Since :

3.0

void eina_matrix4_multiply	(	Eina_Matrix4 *	out,
		const Eina_Matrix4 *	mat_a,
		const Eina_Matrix4 *	mat_b
	)

Multiplies two matrix with check.

Parameters:

out	The resulting matrix
a	The first member of the multiplication
b	The second member of the multiplication

Since (EFL) :

1.17

Since :

3.0

void eina_matrix4_multiply_copy	(	Eina_Matrix4 *	out,
		const Eina_Matrix4 *	mat_a,
		const Eina_Matrix4 *	mat_b
	)

Multiplies two matrix.

Parameters:

out	The resulting matrix
a	The first member of the multiplication
b	The second member of the multiplication

Since (EFL) :

1.17

Since :

3.0

Eina_Bool eina_matrix4_normalized	(	Eina_Matrix4 *	out,
		const Eina_Matrix4 *	in
	)

Returns the determinant of the given matrix.

Parameters:

m	The matrix.

Returns:

The determinant.

This function returns the determinant of the matrix m. No check is done on m.

Since (EFL) :

1.16

Since :

3.0

void eina_matrix4_ortho_set	(	Eina_Matrix4 *	m,
		double	left,
		double	right,
		double	bottom,
		double	top,
		double	dnear,
		double	dfar
	)

Sets orthogonality matrix.

Parameters:

m	The resulting matrix
right	The right value
left	The left value
bottom	The bottom value
top	The top value
dnear	The dnear value
dfar	The dfar value

Since (EFL) :

1.17

Since :

3.0

void eina_matrix4_transpose	(	Eina_Matrix4 *	out,
		const Eina_Matrix4 *	in
	)

Returns the transpose of the given matrix.

Parameters:

out	The transpose matrix
in	The matrix.

Just going to swap row and column.

Since (EFL) :

1.16

Since :

3.0

Eina_Matrix_Type eina_matrix4_type_get

(

const Eina_Matrix4 *

m

)

Returns the type of the given floating point matrix.

Parameters:

m	The floating point matrix.

Returns:

The type of the matrix.

This function returns the type of the matrix m. No check is done on m.

Since (EFL) :

1.15

Since :

3.0

void eina_matrix4_values_get	(	const Eina_Matrix4 *	m,
		double *	xx,
		double *	xy,
		double *	xz,
		double *	xw,
		double *	yx,
		double *	yy,
		double *	yz,
		double *	yw,
		double *	zx,
		double *	zy,
		double *	zz,
		double *	zw,
		double *	wx,
		double *	wy,
		double *	wz,
		double *	ww
	)

Gets the values of the coefficients of the given floating point matrix.

Parameters:

m	The floating point matrix.
xx	The first coefficient value.
xy	The second coefficient value.
xz	The third coefficient value.
xw	The fourth coefficient value.
yx	The fifth coefficient value.
yy	The sixth coefficient value.
yz	The seventh coefficient value.
yw	The heighth coefficient value.
zx	The nineth coefficient value.
zy	The tenth coefficient value.
zz	The eleventh coefficient value.
zw	The twelfth coefficient value.
wx	The thirteenth coefficient value.
wy	The fourteenth coefficient value.
wz	The fifteenth coefficient value.
ww	The sizteenth coefficient value.

This function gets the values of the coefficients of the matrix m. No check is done on m.

See also:

eina_matrix4_values_set()

Since (EFL) :

1.15

Since :

3.0

void eina_matrix4_values_set	(	Eina_Matrix4 *	m,
		double	xx,
		double	xy,
		double	xz,
		double	xw,
		double	yx,
		double	yy,
		double	yz,
		double	yw,
		double	zx,
		double	zy,
		double	zz,
		double	zw,
		double	wx,
		double	wy,
		double	wz,
		double	ww
	)

Sets the values of the coefficients of the given floating point matrix.

Parameters:

m	The floating point matrix.
xx	The first coefficient value.
xy	The second coefficient value.
xz	The third coefficient value.
xw	The fourth coefficient value.
yx	The fifth coefficient value.
yy	The sixth coefficient value.
yz	The seventh coefficient value.
yw	The heighth coefficient value.
zx	The nineth coefficient value.
zy	The tenth coefficient value.
zz	The eleventh coefficient value.
zw	The twelfth coefficient value.
wx	The thirteenth coefficient value.
wy	The fourteenth coefficient value.
wz	The fifteenth coefficient value.
ww	The sizteenth coefficient value.

This function sets the values of the coefficients of the matrix m. No check is done on m.

See also:

eina_matrix4_values_get()

Since (EFL) :

1.15

Since :

3.0