/usr/include/geos/precision/SimpleGeometryPrecisionReducer.h is in libgeos-dev 3.2.2-3ubuntu1.
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* $Id: SimpleGeometryPrecisionReducer.h 2556 2009-06-06 22:22:28Z strk $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* 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_PRECISION_SIMPLEGEOMETRYPRECISIONREDUCER_H
#define GEOS_PRECISION_SIMPLEGEOMETRYPRECISIONREDUCER_H
#include <geos/export.h>
// Forward declarations
namespace geos {
namespace geom {
class PrecisionModel;
class Geometry;
}
}
namespace geos {
namespace precision { // geos.precision
/** \brief
* Reduces the precision of a {@link Geometry}
* according to the supplied {@link PrecisionModel}, without
* attempting to preserve valid topology.
*
* The topology of the resulting geometry may be invalid if
* topological collapse occurs due to coordinates being shifted.
* It is up to the client to check this and handle it if necessary.
* Collapses may not matter for some uses. An example
* is simplifying the input to the buffer algorithm.
* The buffer algorithm does not depend on the validity of the input geometry.
*
*/
class GEOS_DLL SimpleGeometryPrecisionReducer {
private:
const geom::PrecisionModel *newPrecisionModel;
bool removeCollapsed;
//bool changePrecisionModel;
public:
SimpleGeometryPrecisionReducer(const geom::PrecisionModel *pm);
/**
* Sets whether the reduction will result in collapsed components
* being removed completely, or simply being collapsed to an (invalid)
* Geometry of the same type.
*
* @param removeCollapsed if <code>true</code> collapsed
* components will be removed
*/
void setRemoveCollapsedComponents(bool nRemoveCollapsed);
/*
* Sets whether the {@link PrecisionModel} of the new reduced Geometry
* will be changed to be the {@link PrecisionModel} supplied to
* specify the reduction. The default is to not change the
* precision model
*
* @param changePrecisionModel if <code>true</code> the precision
* model of the created Geometry will be the
* the precisionModel supplied in the constructor.
*/
//void setChangePrecisionModel(bool nChangePrecisionModel);
const geom::PrecisionModel* getPrecisionModel();
bool getRemoveCollapsed();
geom::Geometry* reduce(const geom::Geometry *geom);
};
} // namespace geos.precision
} // namespace geos
#endif // GEOS_PRECISION_SIMPLEGEOMETRYPRECISIONREDUCER_H
/**********************************************************************
* $Log$
* Revision 1.2 2006/04/03 13:56:55 strk
* Made externally-owned PrecisionModel const
*
* Revision 1.1 2006/03/23 09:17:19 strk
* precision.h header split, minor optimizations
*
**********************************************************************/
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