/* This software may only be used by you under license from AT&T Corp. ("AT&T"). A copy of AT&T's Source Code Agreement is available at AT&T's Internet website having the URL: <http://www.research.att.com/sw/tools/graphviz/license/source.html> If you received this software without first entering into a license with AT&T, you have an infringing copy of this software and cannot use it without violating AT&T's intellectual property rights. */ #pragma prototyped #ifndef SITE_H #define SITE_H #include "geometry.h" /* Sites are also used as vertices on line segments */ typedef struct Site { Point coord; int sitenbr; int refcnt; } Site; extern int siteidx; extern Site *bottomsite; extern void siteinit(); extern Site * getsite (); extern double dist(Site*, Site*); /* Distance between two sites */ extern void deref(Site*); /* Increment refcnt of site */ extern void ref(Site*); /* Decrement refcnt of site */ extern void makevertex(Site*); /* Transform a site into a vertex */ #endif