NAME
vpGetMatrix - retrieve the contents of a transformation matrix
SYNOPSIS
#include <volpack.h>
vpResult
vpGetMatrix(vpc, matrix_code, matrix)
vpContext *vpc;
int matrix_code;
vpMatrix4 matrix;
ARGUMENTS
vpc VolPack context from vpCreateContext.
matrix_code
A code specifying one of the VolPack transformation matrices
(VP_MODEL, VP_VIEW, VP_PROJECT or VP_SCREEN).
matrix Matrix for storing the result.
DESCRIPTION
vpGetMatrix retrieves the contents of one of the transformation
matrices (see vpCurrentMatrix(3)). The special code VP_SCREEN causes
the function to compute the transformation from object coordinates to
image coordinates and return a matrix describing this transformation.
ERRORS
The normal return value is VP_OK. The following error return value is
possible:
VPERROR_BAD_OPTION
The matrix_code argument is invalid.
SEE ALSO
VolPack(3), vpCreateContext(3), vpCurrentMatrix(3)