WKTReader.h

/**********************************************************************
 *
 * GEOS - Geometry Engine Open Source
 * http://geos.osgeo.org
 *
 * Copyright (C) 2005-2006 Refractions Research Inc.
 * Copyright (C) 2001-2002 Vivid Solutions 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: io/WKTReader.java rev. 1.1 (JTS-1.7)
 *
 **********************************************************************/
 
#ifndef GEOS_IO_WKTREADER_H
#define GEOS_IO_WKTREADER_H
 
#include <geos/export.h>
 
#include <geos/geom/GeometryFactory.h>
#include <geos/geom/CoordinateSequence.h>
#include <string>
 
// Forward declarations
namespace geos {
        namespace io {
                class StringTokenizer;
        }
        namespace geom {
 
                class Coordinate;
                class Geometry;
                class GeometryCollection;
                class Point;
                class LineString;
                class LinearRing;
                class Polygon;
                class MultiPoint;
                class MultiLineString;
                class MultiPolygon;
                class PrecisionModel;
        } 
} 
 
 
namespace geos {
namespace io {

class GEOS_DLL WKTReader {
public:
        //WKTReader();

        WKTReader(const geom::GeometryFactory &gf);

        WKTReader(const geom::GeometryFactory *gf);

        WKTReader();
 
        ~WKTReader();

        geom::Geometry* read(const std::string &wellKnownText);
 
//      Geometry* read(Reader& reader); //Not implemented yet
 
protected:
        geom::CoordinateSequence* getCoordinates(io::StringTokenizer *tokenizer);
        double getNextNumber(io::StringTokenizer *tokenizer);
        std::string getNextEmptyOrOpener(io::StringTokenizer *tokenizer);
        std::string getNextCloserOrComma(io::StringTokenizer *tokenizer);
        std::string getNextCloser(io::StringTokenizer *tokenizer);
        std::string getNextWord(io::StringTokenizer *tokenizer);
        geom::Geometry* readGeometryTaggedText(io::StringTokenizer *tokenizer);
        geom::Point* readPointText(io::StringTokenizer *tokenizer);
        geom::LineString* readLineStringText(io::StringTokenizer *tokenizer);
        geom::LinearRing* readLinearRingText(io::StringTokenizer *tokenizer);
        geom::MultiPoint* readMultiPointText(io::StringTokenizer *tokenizer);
        geom::Polygon* readPolygonText(io::StringTokenizer *tokenizer);
        geom::MultiLineString* readMultiLineStringText(io::StringTokenizer *tokenizer);
        geom::MultiPolygon* readMultiPolygonText(io::StringTokenizer *tokenizer);
        geom::GeometryCollection* readGeometryCollectionText(io::StringTokenizer *tokenizer);
private:
        const geom::GeometryFactory *geometryFactory;
        const geom::PrecisionModel *precisionModel;
 
        void getPreciseCoordinate(io::StringTokenizer *tokenizer, geom::Coordinate&, std::size_t &dim );
 
        bool isNumberNext(io::StringTokenizer *tokenizer);
};
 
} // namespace io
} // namespace geos
 
#ifdef GEOS_INLINE
# include <geos/io/WKTReader.inl>
#endif
 
#endif // #ifndef GEOS_IO_WKTREADER_H