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.
*
**********************************************************************/
#pragma once
#include <geos/export.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
geos::geom::GeometryFilter
Geometry classes support the concept of applying a Geometry filter to the Geometry.
Definition GeometryFilter.h:45
geos::geom::Geometry
Basic implementation of Geometry, constructed and destructed by GeometryFactory.
Definition Geometry.h:196
geos::geom
Definition Angle.h:26
geos
Basic namespace for all GEOS functionalities.
Definition geos.h:38