GEOS: IntersectionAdder.h Source File

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# IntersectionAdder.h

    00001 /**********************************************************************
    00002  * $Id: IntersectionAdder.h 2778 2009-12-03 19:44:00Z mloskot $
    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: noding/IntersectionAdder.java rev. 1.6 (JTS-1.9)
    00017  *
    00018  **********************************************************************/
    00019
    00020 #ifndef GEOS_NODING_INTERSECTIONADDER_H
    00021 #define GEOS_NODING_INTERSECTIONADDER_H
    00022
    00023 #include <geos/export.h>
    00024
    00025 #include <vector>
    00026 #include <iostream>
    00027 #include <cstdlib> // for abs()
    00028
    00029 #include <geos/inline.h>
    00030
    00031 #include <geos/geom/Coordinate.h>
    00032 #include <geos/noding/SegmentIntersector.h> // for inheritance
    00033
    00034 // Forward declarations
    00035 namespace geos {
    00036         namespace geom {
    00037                 class Coordinate;
    00038         }
    00039         namespace noding {
    00040                 class SegmentString;
    00041         }
    00042         namespace algorithm {
    00043                 class LineIntersector;
    00044         }
    00045 }
    00046
    00047 namespace geos {
    00048 namespace noding { // geos.noding
    00049
    00059 class GEOS_DLL IntersectionAdder: public SegmentIntersector {
    00060
    00061 private:
    00062
    00067         bool hasIntersectionVar;
    00068         bool hasProper;
    00069         bool hasProperInterior;
    00070         bool hasInterior;
    00071
    00072         // the proper intersection point found
    00073         const geom::Coordinate* properIntersectionPoint;
    00074
    00075         algorithm::LineIntersector& li;
    00076         bool isSelfIntersection;
    00077         //bool intersectionFound;
    00078
    00085         bool isTrivialIntersection(const SegmentString* e0, int segIndex0,
    00086                         const SegmentString* e1, int segIndex1);
    00087
    00088     // Declare type as noncopyable
    00089     IntersectionAdder(const IntersectionAdder& other);
    00090     IntersectionAdder& operator=(const IntersectionAdder& rhs);
    00091
    00092 public:
    00093
    00094         int numIntersections;
    00095         int numInteriorIntersections;
    00096         int numProperIntersections;
    00097
    00098         // testing only
    00099         int numTests;
    00100
    00101         IntersectionAdder(algorithm::LineIntersector& newLi)
    00102                 :
    00103                 hasIntersectionVar(false),
    00104                 hasProper(false),
    00105                 hasProperInterior(false),
    00106                 hasInterior(false),
    00107                 properIntersectionPoint(NULL),
    00108                 li(newLi),
    00109                 numIntersections(0),
    00110                 numInteriorIntersections(0),
    00111                 numProperIntersections(0),
    00112                 numTests(0)
    00113         {}
    00114
    00115         algorithm::LineIntersector& getLineIntersector() { return li; }
    00116
    00121         const geom::Coordinate* getProperIntersectionPoint()  {
    00122                 return properIntersectionPoint;
    00123         }
    00124
    00125         bool hasIntersection() { return hasIntersectionVar; }
    00126
    00135         bool hasProperIntersection() { return hasProper; }
    00136
    00142         bool hasProperInteriorIntersection() { return hasProperInterior; }
    00143
    00148         bool hasInteriorIntersection() { return hasInterior; }
    00149
    00150
    00160         void processIntersections(
    00161                 SegmentString* e0,  int segIndex0,
    00162                 SegmentString* e1,  int segIndex1);
    00163
    00164
    00165         static bool isAdjacentSegments(int i1, int i2) {
    00166                 return std::abs(i1 - i2) == 1;
    00167         }
    00168
    00174         virtual bool isDone() const {
    00175                 return false;
    00176         }
    00177 };
    00178
    00179
    00180 } // namespace geos.noding
    00181 } // namespace geos
    00182
    00183 //#ifdef GEOS_INLINE
    00184 //# include "geos/noding/IntersectionAdder.inl"
    00185 //#endif
    00186
    00187 #endif // GEOS_NODING_INTERSECTIONADDER_H
    00188
    00189 /**********************************************************************
    00190  * $Log$
    00191  * Revision 1.2  2006/03/24 09:52:41  strk
    00192  * USE_INLINE => GEOS_INLINE
    00193  *
    00194  * Revision 1.1  2006/03/09 16:46:49  strk
    00195  * geos::geom namespace definition, first pass at headers split
    00196  *
    00197  **********************************************************************/
    00198