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# GeometryCombiner.h

    00001 /**********************************************************************
    00002  * $Id: GeometryCombiner.h 2772 2009-12-03 19:30:54Z mloskot $
    00003  *
    00004  * GEOS - Geometry Engine Open Source
    00005  * http://geos.refractions.net
    00006  *
    00007  * Copyright (C) 2006 Refractions Research Inc.
    00008  *
    00009  * This is free software; you can redistribute and/or modify it under
    00010  * the terms of the GNU Lesser General Public Licence as published
    00011  * by the Free Software Foundation.
    00012  * See the COPYING file for more information.
    00013  *
    00014  **********************************************************************/
    00015 #ifndef GEOS_GEOM_UTIL_GEOMETRYCOMBINER_H
    00016 #define GEOS_GEOM_UTIL_GEOMETRYCOMBINER_H
    00017
    00018 #include <vector>
    00019
    00020 // Forward declarations
    00021 namespace geos {
    00022     namespace geom {
    00023         class Geometry;
    00024         class GeometryFactory;
    00025     }
    00026 }
    00027
    00028 namespace geos {
    00029 namespace geom { // geos.geom
    00030 namespace util { // geos.geom.util
    00031
    00043 class GeometryCombiner
    00044 {
    00045 public:
    00052     static Geometry* combine(std::vector<Geometry*> const& geoms);
    00053
    00061     static Geometry* combine(Geometry* g0, Geometry* g1);
    00062
    00071     static Geometry* combine(Geometry* g0, Geometry* g1, Geometry* g2);
    00072
    00073 private:
    00074     GeometryFactory const* geomFactory;
    00075     bool skipEmpty;
    00076     std::vector<Geometry*> const& inputGeoms;
    00077
    00078 public:
    00084     GeometryCombiner(std::vector<Geometry*> const& geoms);
    00085
    00092     static GeometryFactory const* extractFactory(std::vector<Geometry*> const& geoms);
    00093
    00100     Geometry* combine();
    00101
    00102 private:
    00103     void extractElements(Geometry* geom, std::vector<Geometry*>& elems);
    00104
    00105     // Declare type as noncopyable
    00106     GeometryCombiner(const GeometryCombiner& other);
    00107     GeometryCombiner& operator=(const GeometryCombiner& rhs);
    00108 };
    00109
    00110 } // namespace geos.geom.util
    00111 } // namespace geos.geom
    00112 } // namespace geos
    00113
    00114 #endif
    00115
    00116 /**********************************************************************
    00117  * $Log$
    00118  *
    00119  **********************************************************************/