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RelateComputer.h

00001 /**********************************************************************
00002  * $Id: RelateComputer.h 2557 2009-06-08 09:30:55Z 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/relate/RelateComputer.java rev. 1.24 (JTS-1.10)
00017  *
00018  **********************************************************************/
00019 
00020 #ifndef GEOS_OP_RELATE_RELATECOMPUTER_H
00021 #define GEOS_OP_RELATE_RELATECOMPUTER_H
00022 
00023 #include <geos/export.h>
00024 
00025 #include <geos/algorithm/PointLocator.h> // for RelateComputer composition
00026 #include <geos/algorithm/LineIntersector.h> // for RelateComputer composition
00027 #include <geos/geomgraph/NodeMap.h> // for RelateComputer composition
00028 #include <geos/geom/Coordinate.h> // for RelateComputer composition
00029 
00030 #include <vector>
00031 
00032 // Forward declarations
00033 namespace geos {
00034         namespace geom {
00035                 class IntersectionMatrix;
00036                 class Geometry;
00037         }
00038         namespace geomgraph {
00039                 class GeometryGraph;
00040                 class Edge;
00041                 class EdgeEnd;
00042                 class Node;
00043                 namespace index {
00044                         class SegmentIntersector;
00045                 }
00046         }
00047 }
00048 
00049 
00050 namespace geos {
00051 namespace operation { // geos::operation
00052 namespace relate { // geos::operation::relate
00053 
00068 class GEOS_DLL RelateComputer {
00069 public:
00070         //RelateComputer();
00071         virtual ~RelateComputer();
00072         RelateComputer(std::vector<geomgraph::GeometryGraph*> *newArg);
00073         geom::IntersectionMatrix* computeIM();
00074 private:
00075 
00076         algorithm::LineIntersector li;
00077 
00078         algorithm::PointLocator ptLocator;
00079 
00081         std::vector<geomgraph::GeometryGraph*> *arg; 
00082 
00083         geomgraph::NodeMap nodes;
00084 
00086         geom::IntersectionMatrix *im;
00087 
00088         std::vector<geomgraph::Edge*> isolatedEdges;
00089 
00091         geom::Coordinate invalidPoint;
00092 
00093         void insertEdgeEnds(std::vector<geomgraph::EdgeEnd*> *ee);
00094 
00095         void computeProperIntersectionIM(geomgraph::index::SegmentIntersector *intersector,
00096                         geom::IntersectionMatrix *imX);
00097 
00098         void copyNodesAndLabels(int argIndex);
00099         void computeIntersectionNodes(int argIndex);
00100         void labelIntersectionNodes(int argIndex);
00101         void computeDisjointIM(geom::IntersectionMatrix *imX);
00102         void labelNodeEdges();
00103         void updateIM(geom::IntersectionMatrix *imX);
00104         void labelIsolatedEdges(int thisIndex,int targetIndex);
00105         void labelIsolatedEdge(geomgraph::Edge *e,int targetIndex, const geom::Geometry *target);
00106         void labelIsolatedNodes();
00107         void labelIsolatedNode(geomgraph::Node *n,int targetIndex);
00108 };
00109 
00110 
00111 } // namespace geos:operation:relate
00112 } // namespace geos:operation
00113 } // namespace geos
00114 
00115 #endif // GEOS_OP_RELATE_RELATECOMPUTER_H
00116 
00117 /**********************************************************************
00118  * $Log$
00119  * Revision 1.1  2006/03/21 13:11:29  strk
00120  * opRelate.h header split
00121  *
00122  **********************************************************************/
00123 

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