SegmentNode.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2006      Refractions Research Inc.
00007  *
00008  * This is free software; you can redistribute and/or modify it under
00009  * the terms of the GNU Lesser General Public Licence as published
00010  * by the Free Software Foundation. 
00011  * See the COPYING file for more information.
00012  *
00013  **********************************************************************
00014  *
00015  *  Last port: noding/SegmentNode.java rev. 1.6 (JTS-1.9)
00016  *
00017  **********************************************************************/
00018 
00019 #ifndef GEOS_NODING_SEGMENTNODE_H
00020 #define GEOS_NODING_SEGMENTNODE_H
00021 
00022 #include <geos/export.h>
00023 
00024 #include <vector>
00025 #include <iostream>
00026 
00027 #include <geos/inline.h>
00028 
00029 #include <geos/geom/Coordinate.h>
00030 
00031 // Forward declarations
00032 namespace geos {
00033         namespace noding {
00034                 class NodedSegmentString;
00035         }
00036 }
00037 
00038 namespace geos {
00039 namespace noding { // geos.noding
00040 
00042 //
00045 class GEOS_DLL SegmentNode {
00046 private:
00047         const NodedSegmentString& segString;
00048 
00049         int segmentOctant;
00050 
00051         bool isInteriorVar;
00052 
00053     // Declare type as noncopyable
00054     SegmentNode(const SegmentNode& other);
00055     SegmentNode& operator=(const SegmentNode& rhs);
00056 
00057 public:
00058         friend std::ostream& operator<< (std::ostream& os, const SegmentNode& n);
00059 
00061         geom::Coordinate coord;  
00062 
00064         unsigned int segmentIndex;  
00065 
00067         //
00078         SegmentNode(const NodedSegmentString& ss,
00079                     const geom::Coordinate& nCoord,
00080                         unsigned int nSegmentIndex, int nSegmentOctant);
00081 
00082         ~SegmentNode() {}
00083 
00089         bool isInterior() const { return isInteriorVar; }
00090 
00091         bool isEndPoint(unsigned int maxSegmentIndex) const;
00092 
00100         int compareTo(const SegmentNode& other);
00101 
00102         //string print() const;
00103 };
00104 
00105 std::ostream& operator<< (std::ostream& os, const SegmentNode& n);
00106 
00107 struct GEOS_DLL  SegmentNodeLT {
00108         bool operator()(SegmentNode *s1, SegmentNode *s2) const {
00109                 return s1->compareTo(*s2)<0;
00110         }
00111 };
00112 
00113 
00114 } // namespace geos.noding
00115 } // namespace geos
00116 
00117 #endif // GEOS_NODING_SEGMENTNODE_H

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