/usr/include/geos/geom/GeometryFilter.h is in libgeos++-dev 3.6.2-1build2.
This file is owned by root:root, with mode 0o644.
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*
* 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
/** \brief
* Geometry classes support the concept of applying a Geometry
* filter to the Geometry.
*
* In the case of GeometryCollection
* subclasses, the filter is applied to every element Geometry.
* A Geometry filter can either record information about the Geometry
* or change the Geometry in some way.
* Geometry filters implement the interface GeometryFilter.
* (GeometryFilter is an example of the Gang-of-Four Visitor pattern).
*/
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
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