GeometryFilter.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2001-2002 Vivid Solutions Inc.
 * Copyright (C) 2005 2006 Refractions Research Inc.
 *
 * This is free software; you can redistribute and/or modify it under
 * the terms of the GNU Lesser General Public Licence as published
 * by the Free Software Foundation. 
 * See the COPYING file for more information.
 *
 **********************************************************************/
 
#ifndef GEOS_GEOM_GEOMETRYFILTER_H
#define GEOS_GEOM_GEOMETRYFILTER_H
 
//#include <geos/platform.h>
#include <geos/export.h>
#include <geos/inline.h>
 
#include <string>
#include <vector>
#include <cassert>
 
namespace geos {
        namespace geom { // geos::geom
                class Geometry;
        }
}
 
namespace geos {
namespace geom { // geos::geom
 

class GEOS_DLL GeometryFilter {
public:
        /*
         * Performs an operation with or on <code>geom</code>.
         *
         * @param  geom  a <code>Geometry</code> to which the filter
         *         is applied.
         *
         * NOTE: this are not pure abstract to allow read-only
         * or read-write-only filters to avoid defining a fake
         * version of the not-implemented kind.
         */
        virtual void filter_ro(const Geometry * /*geom*/) { assert(0); }
        virtual void filter_rw(Geometry * /*geom*/) { assert(0); }
 
        virtual ~GeometryFilter() {}
};
 
} // namespace geos::geom
} // namespace geos
 
#endif // ndef GEOS_GEOM_GEOMETRYFILTER_H