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/* $Id: pathutil.h,v 1.2 2005/02/10 23:16:10 erg Exp $ $Revision: 1.2 $ */
/* vim:set shiftwidth=4 ts=8: */
/**********************************************************
* This software is part of the graphviz package *
* http://www.graphviz.org/ *
* *
* Copyright (c) 1994-2004 AT&T Corp. *
* and is licensed under the *
* Common Public License, Version 1.0 *
* by AT&T Corp. *
* *
* Information and Software Systems Research *
* AT&T Research, Florham Park NJ *
**********************************************************/
#ifndef _PATHUTIL_INCLUDE
#define _PATHUTIL_INCLUDE
#include <pathplan.h>
#ifdef __cplusplus
extern "C" {
#endif
#ifndef NOT
#define NOT(x) (!(x))
#endif
#ifndef FALSE
#define FALSE 0
#define TRUE (NOT(FALSE))
#endif
typedef double COORD;
extern COORD area2(Ppoint_t, Ppoint_t, Ppoint_t);
extern int wind(Ppoint_t a, Ppoint_t b, Ppoint_t c);
extern COORD dist2(Ppoint_t, Ppoint_t);
extern int intersect(Ppoint_t a, Ppoint_t b, Ppoint_t c, Ppoint_t d);
int in_poly(Ppoly_t argpoly, Ppoint_t q);
Ppoly_t copypoly(Ppoly_t);
void freepoly(Ppoly_t);
#ifdef __cplusplus
}
#endif
#endif
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