GEOS: WKBWriter.h Source File

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# WKBWriter.h

    00001 /**********************************************************************
    00002  * $Id: WKBWriter.h 2579 2009-06-15 14:03:52Z strk $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2005-2006 Refractions Research Inc.
    00008  * Copyright (C) 2001-2002 Vivid Solutions Inc.
    00009  *
    00010  * This is free software; you can redistribute and/or modify it under
    00011  * the terms of the GNU Lesser General Public Licence as published
    00012  * by the Free Software Foundation.
    00013  * See the COPYING file for more information.
    00014  *
    00015  **********************************************************************
    00016  *
    00017  * Last port: io/WKBWriter.java rev. 1.1 (JTS-1.7)
    00018  *
    00019  **********************************************************************/
    00020
    00021 #ifndef GEOS_IO_WKBWRITER_H
    00022 #define GEOS_IO_WKBWRITER_H
    00023
    00024 #include <geos/export.h>
    00025
    00026 #include <geos/platform.h> // for getMachineByteOrder
    00027 #include <iosfwd>
    00028
    00029 // Forward declarations
    00030 namespace geos {
    00031         namespace geom {
    00032
    00033                 class CoordinateSequence;
    00034                 class Geometry;
    00035                 class GeometryCollection;
    00036                 class Point;
    00037                 class LineString;
    00038                 class LinearRing;
    00039                 class Polygon;
    00040                 class MultiPoint;
    00041                 class MultiLineString;
    00042                 class MultiPolygon;
    00043                 class PrecisionModel;
    00044
    00045         } // namespace geom
    00046 } // namespace geos
    00047
    00048 namespace geos {
    00049 namespace io {
    00050
    00073 class GEOS_DLL WKBWriter {
    00074
    00075 public:
    00076         /*
    00077          * \brief
    00078          * Initializes writer with target coordinate dimention, endianness flag
    00079      * and SRID value.
    00080          * <code>WKBWriter</code>.
    00081      */
    00082         WKBWriter(int dims=2, int bo=getMachineByteOrder(), bool includeSRID=false);
    00083
    00084     /*
    00085      * \brief
    00086      * Destructor.
    00087      */
    00088     virtual ~WKBWriter();
    00089
    00090         /*
    00091          * \brief
    00092          * Returns the output dimension used by the
    00093          * <code>WKBWriter</code>.
    00094          */
    00095         virtual int getOutputDimension() const { return outputDimension; }
    00096
    00097         /*
    00098          * Sets the output dimension used by the
    00099          * <code>WKBWriter</code>.
    00100          */
    00101         virtual void setOutputDimension(int newOutputDimension) { outputDimension=newOutputDimension; }
    00102
    00103         /*
    00104          * \brief
    00105          * Returns the byte order used by the
    00106          * <code>WKBWriter</code>.
    00107          */
    00108         virtual int getByteOrder() const { return byteOrder; }
    00109
    00110         /*
    00111          * Sets the byte order used by the
    00112          * <code>WKBWriter</code>.
    00113          */
    00114         virtual void setByteOrder(int newByteOrder) { byteOrder=newByteOrder; }
    00115
    00116         /*
    00117          * \brief
    00118          * Returns whether SRID values are output by the
    00119          * <code>WKBWriter</code>.
    00120          */
    00121         virtual int getIncludeSRID() const { return includeSRID; }
    00122
    00123         /*
    00124          * Sets whether SRID values should be output by the
    00125          * <code>WKBWriter</code>.
    00126          */
    00127     virtual void setIncludeSRID(int newIncludeSRID) { includeSRID = (0 == newIncludeSRID ? false : true); }
    00128
    00136         void write(const geom::Geometry &g, std::ostream &os);
    00137                 // throws IOException, ParseException
    00138
    00146         void writeHEX(const geom::Geometry &g, std::ostream &os);
    00147                 // throws IOException, ParseException
    00148
    00149 private:
    00150
    00151         int outputDimension;
    00152
    00153         int byteOrder;
    00154
    00155         bool includeSRID;
    00156
    00157         std::ostream *outStream;
    00158
    00159         unsigned char buf[8];
    00160
    00161         void writePoint(const geom::Point &p);
    00162                 // throws IOException
    00163
    00164         void writeLineString(const geom::LineString &ls);
    00165                 // throws IOException
    00166
    00167         void writePolygon(const geom::Polygon &p);
    00168                 // throws IOException
    00169
    00170         void writeGeometryCollection(const geom::GeometryCollection &c, int wkbtype);
    00171                 // throws IOException, ParseException
    00172
    00173         void writeCoordinateSequence(const geom::CoordinateSequence &cs, bool sized);
    00174                 // throws IOException
    00175
    00176         void writeCoordinate(const geom::CoordinateSequence &cs, int idx, bool is3d);
    00177                 // throws IOException
    00178
    00179         void writeGeometryType(int geometryType, int SRID);
    00180                 // throws IOException
    00181
    00182         void writeSRID(int SRID);
    00183                 // throws IOException
    00184
    00185         void writeByteOrder();
    00186                 // throws IOException
    00187
    00188         void writeInt(int intValue);
    00189                 // throws IOException
    00190
    00191 };
    00192
    00193 } // namespace io
    00194 } // namespace geos
    00195
    00196 #endif // #ifndef GEOS_IO_WKBWRITER_H
    00197
    00198 /**********************************************************************
    00199  * $Log$
    00200  * Revision 1.2  2006/03/28 11:26:13  strk
    00201  * ByteOrderDataInStream inlines moved to .inl file, updated
    00202  * implementation files includes.
    00203  *
    00204  * Revision 1.1  2006/03/20 18:18:14  strk
    00205  * io.h header split
    00206  *
    00207  **********************************************************************/