SimpleEdgeSetIntersector.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2005-2006 Refractions Research Inc.
00007  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00008  *
00009  * This is free software; you can redistribute and/or modify it under
00010  * the terms of the GNU Lesser General Public Licence as published
00011  * by the Free Software Foundation. 
00012  * See the COPYING file for more information.
00013  *
00014  **********************************************************************/
00015 
00016 #ifndef GEOS_GEOMGRAPH_INDEX_SIMPLEEDGESETINTERSECTOR_H
00017 #define GEOS_GEOMGRAPH_INDEX_SIMPLEEDGESETINTERSECTOR_H
00018 
00019 #include <geos/export.h>
00020 #include <vector>
00021 
00022 #include <geos/geomgraph/index/EdgeSetIntersector.h> // for inheritance
00023 
00024 // Forward declarations
00025 namespace geos {
00026         namespace geomgraph {
00027                 class Edge;
00028                 namespace index {
00029                         class SegmentIntersector;
00030                 }
00031         }
00032 }
00033 
00034 namespace geos {
00035 namespace geomgraph { // geos::geomgraph
00036 namespace index { // geos::geomgraph::index
00037 
00038 class GEOS_DLL SimpleEdgeSetIntersector: public EdgeSetIntersector {
00039 
00040 public:
00041 
00042         SimpleEdgeSetIntersector();
00043 
00044         void computeIntersections(std::vector<Edge*> *edges,
00045                         SegmentIntersector *si, bool testAllSegments);
00046 
00047         void computeIntersections(std::vector<Edge*> *edges0,
00048                         std::vector<Edge*> *edges1, SegmentIntersector *si);
00049 
00050 private:
00051 
00052         int nOverlaps;
00053 
00054         void computeIntersects(Edge *e0, Edge *e1, SegmentIntersector *si);
00055 };
00056 
00057 } // namespace geos.geomgraph.index
00058 } // namespace geos.geomgraph
00059 } // namespace geos
00060 
00061 #endif // GEOS_GEOMGRAPH_INDEX_SIMPLEEDGESETINTERSECTOR_H
00062 

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