GEOS
3.2.3
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00001 /********************************************************************** 00002 * $Id: IsSimpleOp.h 2556 2009-06-06 22:22:28Z strk $ 00003 * 00004 * GEOS - Geometry Engine Open Source 00005 * http://geos.refractions.net 00006 * 00007 * Copyright (C) 2009 Sandro Santilli <strk@keybit.net> 00008 * Copyright (C) 2005-2006 Refractions Research Inc. 00009 * Copyright (C) 2001-2002 Vivid Solutions Inc. 00010 * 00011 * This is free software; you can redistribute and/or modify it under 00012 * the terms of the GNU Lesser General Public Licence as published 00013 * by the Free Software Foundation. 00014 * See the COPYING file for more information. 00015 * 00016 ********************************************************************** 00017 * 00018 * Last port: operation/IsSimpleOp.java rev. 1.22 (JTS-1.10) 00019 * 00020 **********************************************************************/ 00021 00022 #ifndef GEOS_OPERATION_ISSIMPLEOP_H 00023 #define GEOS_OPERATION_ISSIMPLEOP_H 00024 00025 00026 #include <geos/export.h> 00027 #include <geos/geom/Coordinate.h> // for dtor visibility by auto_ptr (compos) 00028 00029 #include <map> 00030 #include <memory> // for auto_ptr 00031 00032 // Forward declarations 00033 namespace geos { 00034 namespace algorithm { 00035 class BoundaryNodeRule; 00036 } 00037 namespace geom { 00038 class LineString; 00039 class MultiLineString; 00040 class MultiPoint; 00041 class Geometry; 00042 struct CoordinateLessThen; 00043 } 00044 namespace geomgraph { 00045 class GeometryGraph; 00046 } 00047 namespace operation { 00048 class EndpointInfo; 00049 } 00050 } 00051 00052 00053 namespace geos { 00054 namespace operation { // geos.operation 00055 00090 class GEOS_DLL IsSimpleOp 00091 { 00092 00093 public: 00094 00101 IsSimpleOp(); 00102 00110 IsSimpleOp(const geom::Geometry& geom); 00111 00119 IsSimpleOp(const geom::Geometry& geom, 00120 const algorithm::BoundaryNodeRule& boundaryNodeRule); 00121 00127 bool isSimple(); 00128 00139 const geom::Coordinate* getNonSimpleLocation() const 00140 { 00141 return nonSimpleLocation.get(); 00142 } 00143 00152 bool isSimple(const geom::LineString *geom); 00153 00162 bool isSimple(const geom::MultiLineString *geom); 00163 00169 bool isSimple(const geom::MultiPoint *mp); 00170 00171 bool isSimpleLinearGeometry(const geom::Geometry *geom); 00172 00173 private: 00174 00181 bool hasNonEndpointIntersection(geomgraph::GeometryGraph &graph); 00182 00191 bool hasClosedEndpointIntersection(geomgraph::GeometryGraph &graph); 00192 00196 void addEndpoint(std::map<const geom::Coordinate*, EndpointInfo*, 00197 geom::CoordinateLessThen>&endPoints, 00198 const geom::Coordinate *p, bool isClosed); 00199 00200 bool isClosedEndpointsInInterior; 00201 00202 bool isSimpleMultiPoint(const geom::MultiPoint& mp); 00203 00204 const geom::Geometry* geom; 00205 00206 std::auto_ptr<geom::Coordinate> nonSimpleLocation; 00207 }; 00208 00209 } // namespace geos.operation 00210 } // namespace geos 00211 00212 #endif 00213 00214 /********************************************************************** 00215 * $Log$ 00216 * Revision 1.2 2006/03/15 18:59:33 strk 00217 * Bug #62: 'struct' CoordinateLessThen in forward declaration 00218 * 00219 * Revision 1.1 2006/03/09 16:46:49 strk 00220 * geos::geom namespace definition, first pass at headers split 00221 * 00222 **********************************************************************/ 00223