GEOS
3.3.6
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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