GEOS 3.2.2
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00001 /********************************************************************** 00002 * $Id: SegmentIntersectionTester.h 2570 2009-06-08 17:15:46Z strk $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2006 Refractions Research 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 * Last port: operation/predicate/SegmentIntersectionTester.java rev. 1.3 (JTS-1.10) 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H 00021 #define GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H 00022 00023 #include <geos/export.h> 00024 00025 #include <geos/algorithm/LineIntersector.h> // for composition 00026 00027 // Forward declarations 00028 namespace geos { 00029 namespace geom { 00030 class LineString; 00031 class CoordinateSequence; 00032 } 00033 } 00034 00035 namespace geos { 00036 namespace operation { // geos::operation 00037 namespace predicate { // geos::operation::predicate 00038 00046 class GEOS_DLL SegmentIntersectionTester { 00047 00048 private: 00049 00054 algorithm::LineIntersector li; // Robust 00055 00056 bool hasIntersectionVar; 00057 00058 public: 00059 00060 SegmentIntersectionTester(): hasIntersectionVar(false) {} 00061 00062 bool hasIntersectionWithLineStrings(const geom::CoordinateSequence &seq, 00063 const std::vector<const geom::LineString *>& lines); 00064 00065 bool hasIntersection(const geom::CoordinateSequence &seq0, 00066 const geom::CoordinateSequence &seq1); 00067 00068 00069 }; 00070 00071 } // namespace geos::operation::predicate 00072 } // namespace geos::operation 00073 } // namespace geos 00074 00075 #endif // ifndef GEOS_OP_PREDICATE_SEGMENTINTERSECTIONTESTER_H