SnapIfNeededOverlayOp.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2009 2011  Sandro Santilli <strk@keybit.net>
 *
 * 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.
 *
 ***********************************************************************
 *
 * Last port: operation/overlay/snap/SnapIfNeededOverlayOp.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_OP_OVERLAY_SNAP_SNAPIFNEEDEDOVERLAYOP_H
#define GEOS_OP_OVERLAY_SNAP_SNAPIFNEEDEDOVERLAYOP_H
 
#include <geos/operation/overlay/OverlayOp.h> // for enums 
 
#include <memory> // for auto_ptr
 
// Forward declarations
namespace geos {
        namespace geom {
                class Geometry;
        }
}
 
namespace geos {
namespace operation { // geos::operation
namespace overlay { // geos::operation::overlay
namespace snap { // geos::operation::overlay::snap

class SnapIfNeededOverlayOp
{
 
public:
 
        static std::auto_ptr<geom::Geometry>
        overlayOp(const geom::Geometry& g0, const geom::Geometry& g1,
                  OverlayOp::OpCode opCode)
        {
                SnapIfNeededOverlayOp op(g0, g1);
                return op.getResultGeometry(opCode);
        }
 
        static std::auto_ptr<geom::Geometry>
        intersection(const geom::Geometry& g0, const geom::Geometry& g1)
        {
                return overlayOp(g0, g1, OverlayOp::opINTERSECTION);
        }
 
        static std::auto_ptr<geom::Geometry>
        Union(const geom::Geometry& g0, const geom::Geometry& g1)
        {
                return overlayOp(g0, g1, OverlayOp::opUNION);
        }
 
        static std::auto_ptr<geom::Geometry>
        difference(const geom::Geometry& g0, const geom::Geometry& g1)
        {
                return overlayOp(g0, g1, OverlayOp::opDIFFERENCE);
        }
 
        static std::auto_ptr<geom::Geometry>
        symDifference(const geom::Geometry& g0, const geom::Geometry& g1)
        {
                return overlayOp(g0, g1, OverlayOp::opSYMDIFFERENCE);
        }
 
        SnapIfNeededOverlayOp(const geom::Geometry& g1, const geom::Geometry& g2)
                :
                geom0(g1),
                geom1(g2)
        {
        }
 
        
        typedef std::auto_ptr<geom::Geometry> GeomPtr;
 
        GeomPtr getResultGeometry(OverlayOp::OpCode opCode);
 
private:
 
        const geom::Geometry& geom0;
        const geom::Geometry& geom1;
 
    // Declare type as noncopyable
    SnapIfNeededOverlayOp(const SnapIfNeededOverlayOp& other);
    SnapIfNeededOverlayOp& operator=(const SnapIfNeededOverlayOp& rhs);
};
 
 
} // namespace geos::operation::overlay::snap
} // namespace geos::operation::overlay
} // namespace geos::operation
} // namespace geos
 
#endif // ndef GEOS_OP_OVERLAY_SNAP_SNAPIFNEEDEDOVERLAYOP_H