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SweepLineSegment.h

00001 /**********************************************************************
00002  * $Id: SweepLineSegment.h 2556 2009-06-06 22:22:28Z strk $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2005-2006 Refractions Research Inc.
00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************/
00016 
00017 #ifndef GEOS_GEOMGRAPH_INDEX_SWEEPLINESEGMENT_H
00018 #define GEOS_GEOMGRAPH_INDEX_SWEEPLINESEGMENT_H
00019 
00020 
00021 #include <geos/export.h>
00022 #include <geos/geomgraph/index/SweepLineEventObj.h> // for inheritance
00023 
00024 // Forward declarations
00025 namespace geos {
00026         namespace geom {
00027                 class CoordinateSequence;
00028         }
00029         namespace geomgraph {
00030                 class Edge;
00031                 namespace index {
00032                         class SegmentIntersector;
00033                 }
00034         }
00035 }
00036 
00037 namespace geos {
00038 namespace geomgraph { // geos::geomgraph
00039 namespace index { // geos::geomgraph::index
00040 
00041 class GEOS_DLL SweepLineSegment: public SweepLineEventOBJ {
00042 public:
00043         SweepLineSegment(Edge *newEdge, int newPtIndex);
00044         ~SweepLineSegment();
00045         double getMinX();
00046         double getMaxX();
00047         void computeIntersections(SweepLineSegment *ss, SegmentIntersector *si);
00048 protected:
00049         Edge *edge;
00050         const geom::CoordinateSequence* pts;
00051         int ptIndex;
00052 };
00053 
00054 
00055 
00056 } // namespace geos.geomgraph.index
00057 } // namespace geos.geomgraph
00058 } // namespace geos
00059 
00060 #endif
00061 
00062 /**********************************************************************
00063  * $Log$
00064  * Revision 1.1  2006/03/14 12:55:56  strk
00065  * Headers split: geomgraphindex.h, nodingSnapround.h
00066  *
00067  **********************************************************************/
00068 

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