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SegmentIntersectionTester.h

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

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