include/geos/geomgraph/EdgeNodingValidator.h

   1 /**********************************************************************
   2  *
   3  * GEOS - Geometry Engine Open Source
   4  * http://geos.osgeo.org
   5  *
   6  * Copyright (C) 2005-2006 Refractions Research Inc.
   7  * Copyright (C) 2001-2002 Vivid Solutions Inc.
   8  *
   9  * This is free software; you can redistribute and/or modify it under
  10  * the terms of the GNU Lesser General Public Licence as published
  11  * by the Free Software Foundation.
  12  * See the COPYING file for more information.
  13  *
  14  **********************************************************************
  15  *
  16  * Last port: geomgraph/EdgeNodingValidator.java rev. 1.6 (JTS-1.10)
  17  *
  18  **********************************************************************/
  19
  20
  21 #ifndef GEOS_GEOMGRAPH_EDGENODINGVALIDATOR_H
  22 #define GEOS_GEOMGRAPH_EDGENODINGVALIDATOR_H
  23
  24 #include <geos/export.h>
  25 #include <vector>
  26
  27 #include <geos/noding/FastNodingValidator.h> // for composition
  28
  29 #include <geos/inline.h>
  30
  31 #ifdef _MSC_VER
  32 #pragma warning(push)
  33 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
  34 #endif
  35
  36 // Forward declarations
  37 namespace geos {
  38         namespace geom {
  39                 class CoordinateSequence;
  40         }
  41         namespace noding {
  42                 class SegmentString;
  43         }
  44         namespace geomgraph {
  45                 class Edge;
  46         }
  47 }
  48
  49 namespace geos {
  50 namespace geomgraph { // geos.geomgraph
  51
  52 /** \brief
  53  * Validates that a collection of SegmentStrings is correctly noded.
  54  *
  55  * Throws an appropriate exception if an noding error is found.
  56  */
  57 class GEOS_DLL EdgeNodingValidator {
  58
  59 private:
  60         std::vector<noding::SegmentString*>& toSegmentStrings(std::vector<Edge*>& edges);
  61
  62         // Make sure this member is initialized *before*
  63         // the NodingValidator, as initialization of
  64         // NodingValidator will use toSegmentString(), that
  65         // in turn expects this member to be initialized
  66         std::vector<noding::SegmentString*> segStr;
  67
  68         // Make sure this member is initialized *before*
  69         // the NodingValidator, as initialization of
  70         // NodingValidator will use toSegmentString(), that
  71         // in turn expects this member to be initialized
  72         std::vector<geom::CoordinateSequence*> newCoordSeq;
  73
  74         noding::FastNodingValidator nv;
  75
  76 public:
  77
  78         /** \brief
  79          * Checks whether the supplied {@link Edge}s
  80          * are correctly noded.
  81          *
  82          * Throws a  {@link TopologyException} if they are not.
  83          *
  84          * @param edges a collection of Edges.
  85          * @throws TopologyException if the SegmentStrings are not
  86          *         correctly noded
  87          *
  88          */
  89         static void checkValid(std::vector<Edge*>& edges)
  90         {
  91                 EdgeNodingValidator validator(edges);
  92                 validator.checkValid();
  93         }
  94
  95         EdgeNodingValidator(std::vector<Edge*>& edges)
  96                 :
  97                 segStr(),
  98                 newCoordSeq(),
  99                 nv(toSegmentStrings(edges))
 100         {}
 101
 102         ~EdgeNodingValidator();
 103
 104         void checkValid() { nv.checkValid(); }
 105 };
 106
 107
 108 } // namespace geos.geomgraph
 109 } // namespace geos
 110
 111 #ifdef _MSC_VER
 112 #pragma warning(pop)
 113 #endif
 114
 115 //#ifdef GEOS_INLINE
 116 //# include "geos/geomgraph/EdgeNodingValidator.inl"
 117 //#endif
 118
 119 #endif // ifndef GEOS_GEOMGRAPH_EDGENODINGVALIDATOR_H
 120
 121 /**********************************************************************
 122  * $Log$
 123  * Revision 1.2  2006/03/24 09:52:41  strk
 124  * USE_INLINE => GEOS_INLINE
 125  *
 126  * Revision 1.1  2006/03/09 16:46:49  strk
 127  * geos::geom namespace definition, first pass at headers split
 128  *
 129  **********************************************************************/
 130