NAME
	  DtGroupGetTextureVertices - Get a list of texture vertices
	  for the given	shape.


     SYNOPSIS
	  #include <Dt.h>


	  int  DtGroupGetTextureVertices( int shapeID, int groupID, int	*count,	DtVec2f	**vertices )


     DESCRIPTION
	  DtGroupGetTextureVertices() returns a	texture	vertex list
	  for the group	indicated by the given shapeID and groupID.
	  The number of	vertices is returned in	count. A pointer to a
	  list of the texture vertices is placed in the	variable
	  pointed to by	vertices. The array returned by
	  DtGroupGetTextureVertices() is not an	internal array,	and
	  must be freed	by the calling function.  It may be modified,
	  but will not change data stored in the model.	 C programmers
	  can access the components of the texture vertex array	as
	  though it were a simple structure as follows:

		    typedef struct DtVec2f { float vec[2];};

		    DtVec2f *tVerts;
		    DtGroupGetTextureVertices( groupID,	DtVec2f
	  &tVerts );
		    /* The first texture vertex	*/
		    u =	tVerts[0].vec[0];
		    v =	tVerts[0].vec[1];


     DIAGNOSTICS
	  DtGroupGetTextureVertices() returns one on success and zero
	  on failure.


     FILES
	  Link with -lDtOMio