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Viewing changes to dotneato/neatogen/hedges.h

  • Committer: Bazaar Package Importer
  • Author(s): Stephen M Moraco
  • Date: 2002-02-05 18:52:12 UTC
  • Revision ID: james.westby@ubuntu.com-20020205185212-8i04c70te00rc40y
Tags: upstream-1.7.16
Import upstream version 1.7.16

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dotneato/neatogen/hedges.h
 
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/*
 
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    This software may only be used by you under license from AT&T Corp.
 
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    ("AT&T").  A copy of AT&T's Source Code Agreement is available at
 
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    AT&T's Internet website having the URL:
 
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    <http://www.research.att.com/sw/tools/graphviz/license/source.html>
 
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    If you received this software without first entering into a license
 
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    with AT&T, you have an infringing copy of this software and cannot use
 
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    it without violating AT&T's intellectual property rights.
 
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*/
 
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#pragma prototyped
 
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#ifndef HEDGES_H
 
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#define HEDGES_H
 
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#include "site.h"
 
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#include "edges.h"
 
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typedef struct Halfedge {
 
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    struct Halfedge    *ELleft, *ELright;
 
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    Edge               *ELedge;
 
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    int                ELrefcnt;
 
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    char               ELpm;
 
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    Site               *vertex;
 
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    float              ystar;
 
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    struct Halfedge    *PQnext;
 
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} Halfedge;
 
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extern Halfedge *ELleftend, *ELrightend;
 
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extern void ELinitialize();
 
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extern int right_of(Halfedge*, Point*);
 
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extern Site *hintersect(Halfedge*, Halfedge*);
 
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extern Halfedge *HEcreate(Edge*, char);
 
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extern void ELinsert(Halfedge *, Halfedge *);
 
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extern Halfedge *ELleftbnd(Point*);
 
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extern void ELdelete(Halfedge *);
 
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extern Halfedge *ELleft(Halfedge*), *ELright(Halfedge*);
 
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extern Halfedge *ELleftbnd(Point*);
 
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extern Site *leftreg(Halfedge*), *rightreg(Halfedge*);
 
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#endif