WKBReader.h

00001 /**********************************************************************
00002  * $Id: WKBReader.h 2958 2010-03-29 11:29:40Z mloskot $
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/WKBReader.java rev. 1.1 (JTS-1.7)
00018  *
00019  **********************************************************************/
00020 
00021 #ifndef GEOS_IO_WKBREADER_H
00022 #define GEOS_IO_WKBREADER_H
00023 
00024 #include <geos/export.h>
00025 
00026 #include <geos/geom/GeometryFactory.h>
00027 #include <geos/io/ByteOrderDataInStream.h> // for composition
00028 
00029 #include <iosfwd> // ostream, istream
00030 #include <vector>
00031 #include <string>
00032 
00033 #define BAD_GEOM_TYPE_MSG "Bad geometry type encountered in"
00034 
00035 #ifdef _MSC_VER
00036 #pragma warning(push)
00037 #pragma warning(disable: 4251) // warning C4251: needs to have dll-interface to be used by clients of class
00038 #endif
00039 
00040 // Forward declarations
00041 namespace geos {
00042         namespace geom {
00043 
00044                 //class GeometryFactory;
00045                 class Coordinate;
00046                 class Geometry;
00047                 class GeometryCollection;
00048                 class Point;
00049                 class LineString;
00050                 class LinearRing;
00051                 class Polygon;
00052                 class MultiPoint;
00053                 class MultiLineString;
00054                 class MultiPolygon;
00055                 class PrecisionModel;
00056 
00057         } // namespace geom
00058 } // namespace geos
00059 
00060 
00061 namespace geos {
00062 namespace io {
00063 
00080 class GEOS_DLL WKBReader {
00081 
00082 public:
00083 
00084         WKBReader(geom::GeometryFactory const& f): factory(f) {};
00085 
00087         WKBReader();
00088 
00097         geom::Geometry* read(std::istream &is);
00098                 // throws IOException, ParseException
00099 
00108         geom::Geometry *readHEX(std::istream &is);
00109                 // throws IOException, ParseException
00110 
00117         static std::ostream &printHEX(std::istream &is, std::ostream &os);
00118  
00119 private:
00120 
00121         const geom::GeometryFactory &factory;
00122 
00123         // for now support the WKB standard only - may be generalized later
00124         unsigned int inputDimension;
00125 
00126         ByteOrderDataInStream dis;
00127 
00128         std::vector<double> ordValues;
00129 
00130         geom::Geometry *readGeometry();
00131                 // throws IOException, ParseException
00132 
00133         geom::Point *readPoint();
00134                 // throws IOException
00135 
00136         geom::LineString *readLineString();
00137                 // throws IOException
00138 
00139         geom::LinearRing *readLinearRing();
00140                 // throws IOException
00141 
00142         geom::Polygon *readPolygon();
00143                 // throws IOException
00144 
00145         geom::MultiPoint *readMultiPoint();
00146                 // throws IOException, ParseException
00147 
00148         geom::MultiLineString *readMultiLineString();
00149                 // throws IOException, ParseException
00150 
00151         geom::MultiPolygon *readMultiPolygon();
00152                 // throws IOException, ParseException
00153 
00154         geom::GeometryCollection *readGeometryCollection();
00155                 // throws IOException, ParseException
00156 
00157         geom::CoordinateSequence *readCoordinateSequence(int); // throws IOException
00158 
00159         void readCoordinate(); // throws IOException
00160 
00161     // Declare type as noncopyable
00162     WKBReader(const WKBReader& other);
00163     WKBReader& operator=(const WKBReader& rhs);
00164 };
00165 
00166 } // namespace io
00167 } // namespace geos
00168 
00169 #ifdef _MSC_VER
00170 #pragma warning(pop)
00171 #endif
00172 
00173 #endif // #ifndef GEOS_IO_WKBREADER_H
00174 
00175 /**********************************************************************
00176  * $Log$
00177  * Revision 1.3  2006/06/01 11:49:36  strk
00178  * Reduced installed headers form geomgraph namespace
00179  *
00180  * Revision 1.2  2006/04/12 10:57:19  strk
00181  * Added WKBReader default ctor using default GeometryFactory instance
00182  *
00183  * Revision 1.1  2006/03/20 18:18:14  strk
00184  * io.h header split
00185  *
00186  **********************************************************************/

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