WKBReader.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/WKBReader.java rev. 1.1 (JTS-1.7)
 *
 **********************************************************************/
 
#ifndef GEOS_IO_WKBREADER_H
#define GEOS_IO_WKBREADER_H
 
#include <geos/export.h>
 
#include <geos/geom/GeometryFactory.h>
#include <geos/io/ByteOrderDataInStream.h> // for composition
 
#include <iosfwd> // ostream, istream
#include <vector>
#include <string>
 
#define BAD_GEOM_TYPE_MSG "Bad geometry type encountered in"
 
#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
#endif
 
// Forward declarations
namespace geos {
        namespace geom {
 
                //class GeometryFactory;
                class Coordinate;
                class Geometry;
                class GeometryCollection;
                class Point;
                class LineString;
                class LinearRing;
                class Polygon;
                class MultiPoint;
                class MultiLineString;
                class MultiPolygon;
                class PrecisionModel;
 
        } // namespace geom
} // namespace geos
 
 
namespace geos {
namespace io {

class GEOS_DLL WKBReader {
 
public:
 
        WKBReader(geom::GeometryFactory const& f): factory(f) {}

        WKBReader();

        geom::Geometry* read(std::istream &is);
                // throws IOException, ParseException

        geom::Geometry *readHEX(std::istream &is);
                // throws IOException, ParseException

        static std::ostream &printHEX(std::istream &is, std::ostream &os);
 
private:
 
        const geom::GeometryFactory &factory;
 
        // for now support the WKB standard only - may be generalized later
        unsigned int inputDimension;
 
        ByteOrderDataInStream dis;
 
        std::vector<double> ordValues;
 
        geom::Geometry *readGeometry();
                // throws IOException, ParseException
 
        geom::Point *readPoint();
                // throws IOException
 
        geom::LineString *readLineString();
                // throws IOException
 
        geom::LinearRing *readLinearRing();
                // throws IOException
 
        geom::Polygon *readPolygon();
                // throws IOException
 
        geom::MultiPoint *readMultiPoint();
                // throws IOException, ParseException
 
        geom::MultiLineString *readMultiLineString();
                // throws IOException, ParseException
 
        geom::MultiPolygon *readMultiPolygon();
                // throws IOException, ParseException
 
        geom::GeometryCollection *readGeometryCollection();
                // throws IOException, ParseException
 
        geom::CoordinateSequence *readCoordinateSequence(int); // throws IOException
 
        void readCoordinate(); // throws IOException
 
    // Declare type as noncopyable
    WKBReader(const WKBReader& other);
    WKBReader& operator=(const WKBReader& rhs);
};
 
} // namespace io
} // namespace geos
 
#ifdef _MSC_VER
#pragma warning(pop)
#endif
 
#endif // #ifndef GEOS_IO_WKBREADER_H