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vpGetMatrix(3)		   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	matri-
       ces  (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)

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<https://man.freebsd.org/cgi/man.cgi?query=volpack-GetMatrix&sektion=3&manpath=FreeBSD+Ports+15.0>

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