vp_math_utils.c File Reference

Functions
vector *	make_vector (sfvec3f data)
	Transform an sfvec3f in an homogeneus vector.
vrmlMatrix *	make_rot_matrix (sfrotation rot)
	Transform a sfrotation in an homogeneus rotation matrix.
vrmlMatrix *	make_scale_matrix (sfvec3f scale)
	transform a sfvec3f in a scale matrix.
vrmlMatrix *	make_translation_matrix (sfvec3f translation)
	Transform a sfvec3f ina a translation matrix.
vrmlMatrix *	make_identity ()
	Creates an identity matrix.
vrmlMatrix *	make_transform_matrix (vrmlMatrix translation, vrmlMatrix rotation, vrmlMatrix scale, vrmlMatrix scaleOrientation, vrmlMatrix inverseScaleOrientation, vrmlMatrix center)
	Generates the transformation matrix from given ones.
void	matrix_premul (vrmlMatrix origin, vrmlMatrix pre)
	premoltiplica origin con la matrice pre e salva in origin.
float	det_minor (vrmlMatrix matrix, int r1, int r2, int r3, int c1, int c2, int c3)
	Return determinant of 3x3 submatrix by given row and column indices.
float	det (vrmlMatrix matrix)
	Return determinant of entire matrix.
void	negate (vrmlMatrix matrix)
	Multiply the given matrix for -1.

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Function Documentation

float det (  vrmlMatrix  matrix  )

Return determinant of entire matrix. Parameters: matrix  the matrix to work on. Returns: the determinant. Here is the call graph for this function:

float det_minor (  vrmlMatrix  matrix, int  r1, int  r2, int  r3, int  c1, int  c2, int  c3 )

Return determinant of 3x3 submatrix by given row and column indices. Parameters: matrix  the matrix to work on. r1  row index. r2  row index. r3  row index. c1  column index. c2  column index. c3  column index. Returns: the determinant.

vrmlMatrix* make_identity (  void   )

Creates an identity matrix. Returns: an identity vrmlMatrix.

vrmlMatrix* make_rot_matrix (  sfrotation  rot  )

Transform a sfrotation in an homogeneus rotation matrix. Parameters: rot  an sfrotation. Returns: a corresponding vrmlMatrix.

vrmlMatrix* make_scale_matrix (  sfvec3f  scale  )

transform a sfvec3f in a scale matrix. Parameters: scale  an sfvec3f Returns: a corresponding vrmlMatrix.

vrmlMatrix* make_transform_matrix (  vrmlMatrix  translation, vrmlMatrix  rotation, vrmlMatrix  scale, vrmlMatrix  scaleOrientation, vrmlMatrix  inverseScaleOrientation, vrmlMatrix  center )

Generates the transformation matrix from given ones. Returns: the resulting vrmlMatrix. Parameters: translation  the translation matrix. rotation  the rotation matrix. scale  the scale matrix. scaleOrientation  the rotation that defines the sistem used by the scale matrix. inverseScaleOrientation  the inverse rotation of the one that defines the sistem used by the scale matrix. center  the transltion to the ccenter of rotation. Here is the call graph for this function:

vrmlMatrix* make_translation_matrix (  sfvec3f  translation  )

Transform a sfvec3f ina a translation matrix. Parameters: translation  an sfvec3f Returns: a corresponding vrmlMatrix

vector* make_vector (  sfvec3f  data  )

Transform an sfvec3f in an homogeneus vector. Parameters: data  an sfvec3f. Returns: a corresponding vector.

void matrix_premul (  vrmlMatrix  origin, vrmlMatrix  pre )

premoltiplica origin con la matrice pre e salva in origin. Here is the call graph for this function:

void negate (  vrmlMatrix  matrix  )

Multiply the given matrix for -1. Parameters: matrix  the matrix.

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