OverlayResultValidator.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: operation/overlay/validate/OverlayResultValidator.java rev. 1.4 (JTS-1.10)
00016  *
00017  **********************************************************************/
00018 
00019 #ifndef GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H
00020 #define GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H
00021 
00022 #include <geos/export.h>
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 #ifdef _MSC_VER
00030 #pragma warning(push)
00031 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
00032 #endif
00033 
00034 // Forward declarations
00035 namespace geos {
00036         namespace geom {
00037                 class Geometry;
00038                 class Coordinate;
00039         }
00040 }
00041 
00042 namespace geos {
00043 namespace operation { // geos::operation
00044 namespace overlay { // geos::operation::overlay
00045 namespace validate { // geos::operation::overlay::validate
00046 
00064 class GEOS_DLL OverlayResultValidator {
00065 
00066 public:
00067 
00068         static bool isValid(
00069                         const geom::Geometry& geom0,
00070                         const geom::Geometry& geom1,
00071                         OverlayOp::OpCode opCode,
00072                         const geom::Geometry& result);
00073 
00074         OverlayResultValidator(
00075                         const geom::Geometry& geom0,
00076                         const geom::Geometry& geom1,
00077                         const geom::Geometry& result);
00078 
00079         bool isValid(OverlayOp::OpCode opCode);
00080 
00081         geom::Coordinate& getInvalidLocation() {
00082                 return invalidLocation;
00083         }
00084 
00085 private:
00086 
00087         double boundaryDistanceTolerance;
00088 
00089         const geom::Geometry& g0;
00090 
00091         const geom::Geometry& g1;
00092 
00093         const geom::Geometry& gres;
00094 
00095         FuzzyPointLocator fpl0;
00096 
00097         FuzzyPointLocator fpl1;
00098 
00099         FuzzyPointLocator fplres;
00100 
00101         geom::Coordinate invalidLocation;
00102 
00103         std::vector<geom::Coordinate> testCoords;
00104 
00105         void addTestPts(const geom::Geometry& g);
00106 
00107         void addVertices(const geom::Geometry& g);
00108 
00109         bool testValid(OverlayOp::OpCode overlayOp);
00110 
00111         bool testValid(OverlayOp::OpCode overlayOp, const geom::Coordinate& pt);
00112 
00113         bool isValidResult(OverlayOp::OpCode overlayOp,
00114                         std::vector<geom::Location::Value>& location);
00115 
00116         static double computeBoundaryDistanceTolerance(
00117                 const geom::Geometry& g0, const geom::Geometry& g1);
00118 
00119     // Declare type as noncopyable
00120     OverlayResultValidator(const OverlayResultValidator& other);
00121     OverlayResultValidator& operator=(const OverlayResultValidator& rhs);
00122 };
00123 
00124 } // namespace geos::operation::overlay::validate
00125 } // namespace geos::operation::overlay
00126 } // namespace geos::operation
00127 } // namespace geos
00128 
00129 #ifdef _MSC_VER
00130 #pragma warning(pop)
00131 #endif
00132 
00133 #endif // ndef GEOS_OP_OVERLAY_OVERLAYRESULTVALIDATOR_H

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