/misc/src/release/graphviz-2.18-1/src/graphviz-2.18/lib/neatogen/info.h

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00001 /* $Id: info.h,v 1.2 2005/02/24 00:57:33 ellson Exp $ $Revision: 1.2 $ */
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 #ifdef __cplusplus
00018 extern "C" {
00019 #endif
00020 
00021 
00022 
00023 #ifndef INFO_H
00024 #define INFO_H
00025 
00026 #include "voronoi.h"
00027 #include "poly.h"
00028 #include "graph.h"
00029 
00030     typedef struct ptitem {     /* Point list */
00031         struct ptitem *next;
00032         Point p;
00033     } PtItem;
00034 
00035     typedef struct {            /* Info concerning site */
00036         Agnode_t *node;         /* libgraph node */
00037         Site site;              /* site used by voronoi code */
00038         int overlaps;           /* true if node overlaps other nodes */
00039         Poly poly;              /* polygon at node */
00040         PtItem *verts;          /* sorted list of vertices of */
00041         /* voronoi polygon */
00042     } Info_t;
00043 
00044     extern Info_t *nodeInfo;    /* Array of node info */
00045 
00046     extern void infoinit(void);
00047     /* Insert vertex into sorted list */
00048     extern void addVertex(Site *, double, double);
00049 #endif
00050 
00051 #ifdef __cplusplus
00052 }
00053 #endif

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