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# OverlayResultValidator.h

    00001 /**********************************************************************
    00002  * $Id: OverlayResultValidator.h 2780 2009-12-03 19:46:43Z 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: operation/overlay/validate/OverlayResultValidator.java rev. 1.4 (JTS-1.10)
    00017  *
    00018  **********************************************************************/
    00019
    00020 #ifndef GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H
    00021 #define GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H
    00022
    00023 #include <geos/operation/overlay/OverlayOp.h> // for OpCode enum
    00024 #include <geos/operation/overlay/validate/FuzzyPointLocator.h> // composition
    00025 #include <geos/geom/Location.h> // for Location::Value type
    00026
    00027 #include <vector>
    00028
    00029 // Forward declarations
    00030 namespace geos {
    00031         namespace geom {
    00032                 class Geometry;
    00033                 class Coordinate;
    00034         }
    00035 }
    00036
    00037 namespace geos {
    00038 namespace operation { // geos::operation
    00039 namespace overlay { // geos::operation::overlay
    00040 namespace validate { // geos::operation::overlay::validate
    00041
    00059 class OverlayResultValidator {
    00060
    00061 public:
    00062
    00063         static bool isValid(
    00064                         const geom::Geometry& geom0,
    00065                         const geom::Geometry& geom1,
    00066                         OverlayOp::OpCode opCode,
    00067                         const geom::Geometry& result);
    00068
    00069         OverlayResultValidator(
    00070                         const geom::Geometry& geom0,
    00071                         const geom::Geometry& geom1,
    00072                         const geom::Geometry& result);
    00073
    00074         bool isValid(OverlayOp::OpCode opCode);
    00075
    00076         geom::Coordinate& getInvalidLocation() {
    00077                 return invalidLocation;
    00078         }
    00079
    00080 private:
    00081
    00082         double boundaryDistanceTolerance;
    00083
    00084         const geom::Geometry& g0;
    00085
    00086         const geom::Geometry& g1;
    00087
    00088         const geom::Geometry& gres;
    00089
    00090         FuzzyPointLocator fpl0;
    00091
    00092         FuzzyPointLocator fpl1;
    00093
    00094         FuzzyPointLocator fplres;
    00095
    00096         geom::Coordinate invalidLocation;
    00097
    00098         std::vector<geom::Coordinate> testCoords;
    00099
    00100         void addTestPts(const geom::Geometry& g);
    00101
    00102         void addVertices(const geom::Geometry& g);
    00103
    00104         bool testValid(OverlayOp::OpCode overlayOp);
    00105
    00106         bool testValid(OverlayOp::OpCode overlayOp, const geom::Coordinate& pt);
    00107
    00108         bool isValidResult(OverlayOp::OpCode overlayOp,
    00109                         std::vector<geom::Location::Value>& location);
    00110
    00111         static double computeBoundaryDistanceTolerance(
    00112                 const geom::Geometry& g0, const geom::Geometry& g1);
    00113
    00114     // Declare type as noncopyable
    00115     OverlayResultValidator(const OverlayResultValidator& other);
    00116     OverlayResultValidator& operator=(const OverlayResultValidator& rhs);
    00117 };
    00118
    00119 } // namespace geos::operation::overlay::validate
    00120 } // namespace geos::operation::overlay
    00121 } // namespace geos::operation
    00122 } // namespace geos
    00123
    00124 #endif // ndef GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H
    00125
    00126 /**********************************************************************
    00127  * $Log$
    00128  **********************************************************************/
    00129