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V_Sim API - Reference Manual | ![]() |
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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]);
Some very basic linear algebra are redefined here. It also gives access to coordinates conversion, essentially between cartesian and spherical.
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. |
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. |
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. |
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. |
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. |