GEOS
3.4.2
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00001 /********************************************************************** 00002 * 00003 * GEOS - Geometry Engine Open Source 00004 * http://geos.osgeo.org 00005 * 00006 * Copyright (C) 2005-2006 Refractions Research Inc. 00007 * Copyright (C) 2001-2002 Vivid Solutions 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: linearref/ExtractLineByLocation.java rev. 1.10 00017 * 00018 **********************************************************************/ 00019 00020 #ifndef GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H 00021 #define GEOS_LINEARREF_EXTRACTLINEBYLOCATION_H 00022 00023 #include <geos/geom/Coordinate.h> 00024 #include <geos/geom/Geometry.h> 00025 #include <geos/linearref/LinearLocation.h> 00026 00027 namespace geos 00028 { 00029 namespace linearref // geos::linearref 00030 { 00031 00036 class ExtractLineByLocation 00037 { 00038 00039 private: 00040 const geom::Geometry *line; 00041 geom::Geometry *reverse(const geom::Geometry *linear); 00042 00050 geom::LineString* computeLine(const LinearLocation& start, const LinearLocation& end); 00051 00059 geom::Geometry *computeLinear(const LinearLocation& start, const LinearLocation& end); 00060 00061 public: 00073 static geom::Geometry *extract(const geom::Geometry *line, const LinearLocation& start, const LinearLocation& end); 00074 00075 ExtractLineByLocation(const geom::Geometry *line); 00076 00085 geom::Geometry *extract(const LinearLocation& start, const LinearLocation& end); 00086 00087 }; 00088 } 00089 } 00090 #endif