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libart-lgpl/art_svp_wind.h

58 lines
1.5 KiB

/* Libart_LGPL - library of basic graphic primitives
* Copyright (C) 1998 Raph Levien
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __ART_SVP_WIND_H__
#define __ART_SVP_WIND_H__
/* Primitive intersection and winding number operations on sorted
vector paths. */
#ifdef LIBART_COMPILATION
#include "art_svp.h"
#else
#include <libart_lgpl/art_svp.h>
#endif
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#ifndef ART_WIND_RULE_DEFINED
#define ART_WIND_RULE_DEFINED
typedef enum {
ART_WIND_RULE_NONZERO,
ART_WIND_RULE_INTERSECT,
ART_WIND_RULE_ODDEVEN,
ART_WIND_RULE_POSITIVE
} ArtWindRule;
#endif
ArtSVP *
art_svp_uncross (ArtSVP *vp);
ArtSVP *
art_svp_rewind_uncrossed (ArtSVP *vp, ArtWindRule rule);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __ART_SVP_WIND_H__ */