GEOS
3.6.2
|
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/OffsetPointGenerator.java rev. 1.1 (JTS-1.10) 00016 * 00017 **********************************************************************/ 00018 00019 #ifndef GEOS_OP_OVERLAY_OFFSETPOINTGENERATOR_H 00020 #define GEOS_OP_OVERLAY_OFFSETPOINTGENERATOR_H 00021 00022 #include <geos/export.h> 00023 #include <geos/algorithm/PointLocator.h> // for composition 00024 #include <geos/geom/Geometry.h> // for auto_ptr visibility of dtor 00025 #include <geos/geom/MultiPoint.h> // for auto_ptr visibility of dtor 00026 #include <geos/geom/Coordinate.h> // for use in vector 00027 00028 #include <vector> 00029 #include <memory> // for auto_ptr 00030 00031 #ifdef _MSC_VER 00032 #pragma warning(push) 00033 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class 00034 #endif 00035 00036 // Forward declarations 00037 namespace geos { 00038 namespace geom { 00039 //class Geometry; 00040 //class MultiPoint; 00041 class LineString; 00042 //class Coordinate; 00043 } 00044 } 00045 00046 namespace geos { 00047 namespace operation { // geos::operation 00048 namespace overlay { // geos::operation::overlay 00049 namespace validate { // geos::operation::overlay::validate 00050 00052 // 00053 class GEOS_DLL OffsetPointGenerator { 00054 00055 public: 00056 00057 OffsetPointGenerator(const geom::Geometry& geom, double offset); 00058 00060 std::auto_ptr< std::vector<geom::Coordinate> > getPoints(); 00061 00062 private: 00063 00064 const geom::Geometry& g; 00065 00066 double offsetDistance; 00067 00068 std::auto_ptr< std::vector<geom::Coordinate> > offsetPts; 00069 00070 void extractPoints(const geom::LineString* line); 00071 00072 void computeOffsets(const geom::Coordinate& p0, 00073 const geom::Coordinate& p1); 00074 00075 // Declare type as noncopyable 00076 OffsetPointGenerator(const OffsetPointGenerator& other); 00077 OffsetPointGenerator& operator=(const OffsetPointGenerator& rhs); 00078 }; 00079 00080 } // namespace geos::operation::overlay::validate 00081 } // namespace geos::operation::overlay 00082 } // namespace geos::operation 00083 } // namespace geos 00084 00085 #ifdef _MSC_VER 00086 #pragma warning(pop) 00087 #endif 00088 00089 #endif // ndef GEOS_OP_OVERLAY_OFFSETPOINTGENERATOR_H