toolMatrix

toolMatrix — Defines basic handlings on matrix.

Synopsis

void                matrix_sphericalToCartesian         (float *cartesian,
                                                         float *spherical);
void                matrix_productMatrix                (float matRes[3][3],
                                                         float matA[3][3],
                                                         float matB[3][3]);
void                matrix_cartesianToSpherical         (float *spherical,
                                                         float *cartesian);
gboolean            matrix_reducePrimitiveVectors       (float reduced[6],
                                                         double full[3][3]);
void                matrix_productVector                (float vectRes[3],
                                                         float mat[3][3],
                                                         float vect[3]);

Description

Some very basic linear algebra are redefined here. It also gives access to coordinates conversion, essentially between cartesian and spherical.

Details

matrix_sphericalToCartesian ()

void                matrix_sphericalToCartesian         (float *cartesian,
                                                         float *spherical);

A method to transform spherical coordinates (radius, phi and theta) to cartesian coordinates.

cartesian :

an allocated array of 3 floating point values to store the result ;

spherical :

an allocated array of 3 floating point values to read the input.

matrix_productMatrix ()

void                matrix_productMatrix                (float matRes[3][3],
                                                         float matA[3][3],
                                                         float matB[3][3]);

Compute the mathematical product between matA and matB and put the result matrix in matRes.

matRes :

an array of floating point values of size 3x3 ;

matA :

an array of floating point values of size 3x3 ;

matB :

an array of floating point values of size 3x3.

matrix_cartesianToSpherical ()

void                matrix_cartesianToSpherical         (float *spherical,
                                                         float *cartesian);

A method to transform cartesian coordinates in spherical coordinates (radius, phi and theta).

spherical :

an allocated array of 3 floating point values to store the result ;

cartesian :

an allocated array of 3 floating point values to read the input.

matrix_reducePrimitiveVectors ()

gboolean            matrix_reducePrimitiveVectors       (float reduced[6],
                                                         double full[3][3]);

This routine transforms the given matrix full into a reduced array used by V_Sim to store box definition.

reduced :

a storage for 6 floating point values ;

full :

a full 3x3 matrix to be transformed.

Returns :

FALSE if the given matrix is planar.

matrix_productVector ()

void                matrix_productVector                (float vectRes[3],
                                                         float mat[3][3],
                                                         float vect[3]);

Compute the mathematical product between matA and vect and put the result vector in vectRes.

vectRes :

an array of floating point values of size 3 ;

mat :

an array of floating point values of size 3x3 ;

vect :

an array of floating point values of size 3.