00001 /* $Id: pathutil.h,v 1.1 2005/04/09 03:38:19 roxo Exp $ $Revision: 1.1 $ */ 00002 /* vim:set shiftwidth=4 ts=8: */ 00003 00004 /********************************************************** 00005 * This software is part of the graphviz package * 00006 * http://www.graphviz.org/ * 00007 * * 00008 * Copyright (c) 1994-2004 AT&T Corp. * 00009 * and is licensed under the * 00010 * Common Public License, Version 1.0 * 00011 * by AT&T Corp. * 00012 * * 00013 * Information and Software Systems Research * 00014 * AT&T Research, Florham Park NJ * 00015 **********************************************************/ 00016 00017 00018 00019 #ifndef _PATHUTIL_INCLUDE 00020 #define _PATHUTIL_INCLUDE 00021 #include <pathplan.h> 00022 00023 #ifdef __cplusplus 00024 extern "C" { 00025 #endif 00026 00027 #define NOT(x) (!(x)) 00028 #ifndef FALSE 00029 #define FALSE 0 00030 #define TRUE (NOT(FALSE)) 00031 #endif 00032 00033 typedef double COORD; 00034 extern COORD area2(Ppoint_t, Ppoint_t, Ppoint_t); 00035 extern COORD dist2(Ppoint_t, Ppoint_t); 00036 extern int intersect(Ppoint_t a, Ppoint_t b, Ppoint_t c, Ppoint_t d); 00037 00038 int in_poly(Ppoly_t argpoly, Ppoint_t q); 00039 Ppoly_t copypoly(Ppoly_t); 00040 void freepoly(Ppoly_t); 00041 00042 #ifdef __cplusplus 00043 } 00044 #endif 00045 #endif