/****************************************************************************
 *
 * MODULE:       r.out.vtk
 *
 * AUTHOR(S):    Original author
 *               Soeren Gebbert soerengebbert@gmx.de
 *                 08 23 2005 Berlin
 * PURPOSE:      Converts raster maps into the VTK-Ascii format
 *
 * COPYRIGHT:    (C) 2005 by the GRASS Development Team
 *
 *               This program is free software under the GNU General Public
 *               License (>=v2). Read the file COPYING that comes with GRASS
 *               for details.
 *
 *****************************************************************************/

#ifndef __R_OUT_VTK_GLOBALDEFS_H__
#define __R_OUT_VTK_GLOBALDEFS_H__
#define QUADS           0
#define TRIANGLE_STRIPS 1
#define VERTICES        2

extern double x_extent;
extern double y_extent;

#endif
