GeometryTransformer.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2011 Sandro Santilli <strk@keybit.net>
 * Copyright (C) 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.
 *
 **********************************************************************
 *
 * Last port: geom/util/GeometryTransformer.java r320 (JTS-1.12)
 *
 **********************************************************************/
 
#ifndef GEOS_GEOM_UTIL_GEOMETRYTRANSFORMER_H
#define GEOS_GEOM_UTIL_GEOMETRYTRANSFORMER_H
 
 
#include <geos/export.h>
#include <geos/geom/Coordinate.h> // destructor visibility for vector
#include <geos/geom/Geometry.h> // destructor visibility for auto_ptr
#include <geos/geom/CoordinateSequence.h> // destructor visibility for auto_ptr
 
#include <memory> // for auto_ptr
#include <vector>
 
// Forward declarations
namespace geos {
        namespace geom {
                class Geometry;
                class GeometryFactory;
                class Point;
                class LinearRing;
                class LineString;
                class Polygon;
                class MultiPoint;
                class MultiPolygon;
                class MultiLineString;
                class GeometryCollection;
                namespace util {
                        //class GeometryEditorOperation;
                }
        }
}
 
 
namespace geos {
namespace geom { // geos.geom
namespace util { // geos.geom.util

class GEOS_DLL GeometryTransformer {
 
public:
 
        GeometryTransformer();
 
        virtual ~GeometryTransformer();
 
        std::auto_ptr<Geometry> transform(const Geometry* nInputGeom);
 
        void setSkipTransformedInvalidInteriorRings(bool b);
 
protected:
 
        const GeometryFactory* factory;

        CoordinateSequence::AutoPtr createCoordinateSequence(
                        std::auto_ptr< std::vector<Coordinate> > coords);
 
        virtual CoordinateSequence::AutoPtr transformCoordinates(
                        const CoordinateSequence* coords,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformPoint(
                        const Point* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformMultiPoint(
                        const MultiPoint* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformLinearRing(
                        const LinearRing* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformLineString(
                        const LineString* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformMultiLineString(
                        const MultiLineString* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformPolygon(
                        const Polygon* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformMultiPolygon(
                        const MultiPolygon* geom,
                        const Geometry* parent);
 
        virtual Geometry::AutoPtr transformGeometryCollection(
                        const GeometryCollection* geom,
                        const Geometry* parent);
 
private:
 
        const Geometry* inputGeom;
 
        // these could eventually be exposed to clients
        bool pruneEmptyGeometry;

        bool preserveGeometryCollectionType;

        bool preserveCollections;

        bool preserveType;

        bool skipTransformedInvalidInteriorRings;
 
        // Declare type as noncopyable
        GeometryTransformer(const GeometryTransformer& other);
        GeometryTransformer& operator=(const GeometryTransformer& rhs);
};
 
 
} // namespace geos.geom.util
} // namespace geos.geom
} // namespace geos
 
#endif // GEOS_GEOM_UTIL_GEOMETRYTRANSFORMER_H