PolygonExtracter.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2001-2002 Vivid Solutions Inc.
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 #ifndef GEOS_GEOM_UTIL_POLYGONEXTRACTER_H
00017 #define GEOS_GEOM_UTIL_POLYGONEXTRACTER_H
00018 
00019 #include <geos/export.h>
00020 #include <geos/geom/GeometryFilter.h>
00021 #include <geos/geom/Polygon.h>
00022 #include <geos/platform.h>
00023 #include <vector>
00024 
00025 namespace geos {
00026 namespace geom { // geos.geom
00027 namespace util { // geos.geom.util
00028 
00032 class GEOS_DLL PolygonExtracter: public GeometryFilter {
00033 
00034 public:
00035 
00043         static void getPolygons(const Geometry &geom, std::vector<const Polygon*>& ret);
00044 
00049         PolygonExtracter(std::vector<const Polygon*>& newComps);
00050 
00051         void filter_rw(Geometry *geom);
00052 
00053         void filter_ro(const Geometry *geom);
00054 
00055 private:
00056 
00058     std::vector<const Polygon*>& comps;
00059 
00060     // Declare type as noncopyable
00061     PolygonExtracter(const PolygonExtracter& other);
00062     PolygonExtracter& operator=(const PolygonExtracter& rhs);
00063 };
00064 
00065 } // namespace geos.geom.util
00066 } // namespace geos.geom
00067 } // namespace geos
00068 
00069 #endif

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