DragonFly On-Line Manual Pages

vpGetMatrix(3)        DragonFly Library Functions Manual        vpGetMatrix(3)

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)

VolPack                                                         vpGetMatrix(3)