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  • Committer: njh
  • Date: 2006-05-22 11:50:24 UTC
  • Revision ID: svn-v4:4601daaa-0314-0410-9a8b-c964a3c23b6b:trunk/lib2geom:1
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geom.h
 
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/**
 
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 *  \file geom.h
 
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 *  \brief Various geometrical calculations
 
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 *
 
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 *  Authors:
 
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 *   Nathan Hurst <njh@mail.csse.monash.edu.au>
 
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 *
 
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 * Copyright (C) 1999-2002 authors
 
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 *
 
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 * Released under GNU GPL, read the file 'COPYING' for more information
 
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 */
 
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#include "forward.h"
 
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enum IntersectorKind {
 
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    intersects = 0,
 
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    parallel,
 
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    coincident,
 
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    no_intersection
 
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};
 
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/* Define here various primatives, such as line, line segment, circle, bezier path etc. */
 
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/* intersectors */
 
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IntersectorKind
 
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line_intersection(Geom::Point const &n0, double const d0,
 
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                  Geom::Point const &n1, double const d1,
 
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                  Geom::Point &result);
 
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IntersectorKind
 
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segment_intersect(Geom::Point const &p00, Geom::Point const &p01,
 
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                  Geom::Point const &p10, Geom::Point const &p11,
 
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                  Geom::Point &result);
 
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IntersectorKind
 
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line_twopoint_intersect(Geom::Point const &p00, Geom::Point const &p01,
 
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                        Geom::Point const &p10, Geom::Point const &p11,
 
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                        Geom::Point &result);