partitionX.h

/*
 * SGI FREE SOFTWARE LICENSE B (Version 2.0, Sept. 18, 2008)
 * Copyright (C) 1991-2000 Silicon Graphics, Inc. All Rights Reserved.
 *
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 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
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 * http://oss.sgi.com/projects/FreeB/
 * shall be included in all copies or substantial portions of the Software.
 *
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 */
/*
*/

#ifndef _PARTITIONX_H
#define _PARTITIONX_H

#include "directedLine.h"

Int isCuspX(directedLine *v);
Int isReflexX(directedLine *v);
Int cuspTypeX(directedLine *v);

//assuming the array of ret_interior_cusps has been allocated
void findInteriorCuspsX(directedLine* polygon, Int& ret_n_interior_cusps,
                       directedLine** ret_interior_cusps);

Int numInteriorCuspsX(directedLine* polygon);

/*a single polygon with a single cusp
 *return the diagonal vertex corresponding to this cusp
 */
directedLine* findDiagonal_singleCuspX(directedLine* cusp);

#endif