• Main Page
  • Related Pages
  • Namespaces
  • Classes
  • Files
  • File List

PointExtracter.h

00001 /**********************************************************************
00002  * $Id: PointExtracter.h 2772 2009-12-03 19:30:54Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00008  * Copyright (C) 2006 Refractions Research Inc.
00009  *
00010  * This is free software; you can redistribute and/or modify it under
00011  * the terms of the GNU Lesser General Public Licence as published
00012  * by the Free Software Foundation. 
00013  * See the COPYING file for more information.
00014  *
00015  **********************************************************************/
00016 
00017 #ifndef GEOS_GEOM_UTIL_POINTEXTRACTER_H
00018 #define GEOS_GEOM_UTIL_POINTEXTRACTER_H
00019 
00020 #include <geos/export.h>
00021 #include <geos/geom/GeometryFilter.h>
00022 #include <geos/geom/Point.h>
00023 #include <geos/platform.h>
00024 #include <vector>
00025 
00026 namespace geos {
00027 namespace geom { // geos.geom
00028 namespace util { // geos.geom.util
00029 
00033 class GEOS_DLL PointExtracter: public GeometryFilter {
00034 
00035 public:
00042         static void getPoints(const Geometry &geom, Point::ConstVect &ret)
00043         {
00044                 PointExtracter pe(ret);
00045                 geom.apply_ro(&pe);
00046         }
00047 
00052         PointExtracter(Point::ConstVect& newComps)
00053                 :
00054                 comps(newComps)
00055                 {}
00056 
00057         void filter_rw(Geometry *geom)
00058         {
00059 if ( const Point *p=dynamic_cast<const Point *>(geom) )
00060                 comps.push_back(p);
00061         }
00062 
00063         void filter_ro(const Geometry *geom)
00064         {
00065 if ( const Point *p=dynamic_cast<const Point *>(geom) )
00066                 comps.push_back(p);
00067         }
00068 
00069 private:
00070 
00071         Point::ConstVect& comps;
00072 
00073     // Declare type as noncopyable
00074     PointExtracter(const PointExtracter& other);
00075     PointExtracter& operator=(const PointExtracter& rhs);
00076 };
00077 
00078 } // namespace geos.geom.util
00079 } // namespace geos.geom
00080 } // namespace geos
00081 
00082 #endif
00083 
00084 /**********************************************************************
00085  * $Log$
00086  * Revision 1.1  2006/03/09 16:46:49  strk
00087  * geos::geom namespace definition, first pass at headers split
00088  *
00089  **********************************************************************/

Generated on Thu Jul 22 2010 for GEOS by  doxygen 1.7.1