GeometricShapeFactory.h

00001 /**********************************************************************
00002  * $Id: GeometricShapeFactory.h 1820 2006-09-06 16:54:23Z mloskot $
00003  *
00004  * GEOS - Geometry Engine Open Source
00005  * http://geos.refractions.net
00006  *
00007  * Copyright (C) 2001-2002 Vivid Solutions Inc.
00008  * Copyright (C) 2006 Refractions Research 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 #ifndef GEOS_UTIL_GEOMETRICSHAPEFACTORY_H
00018 #define GEOS_UTIL_GEOMETRICSHAPEFACTORY_H
00019 
00020 #include <cassert>
00021 
00022 #include <geos/geom/Coordinate.h>
00023 
00024 // Forward declarations
00025 namespace geos {
00026         namespace geom { 
00027                 class Envelope;
00028                 class Polygon;
00029                 class GeometryFactory;
00030                 class LineString;
00031         }
00032 }
00033 
00034 namespace geos {
00035 namespace util { // geos::util
00036 
00037 
00047 class GeometricShapeFactory {
00048 private:
00049         class Dimensions {
00050         public:
00051                 Dimensions();
00052                 geom::Coordinate base;
00053                 geom::Coordinate centre;
00054                 double width;
00055                 double height;
00056                 void setBase(const geom::Coordinate& newBase);
00057                 void setCentre(const geom::Coordinate& newCentre);
00058                 void setSize(double size);
00059                 void setWidth(double nWidth);
00060                 void setHeight(double nHeight);
00061                 geom::Envelope* getEnvelope();
00062         };
00063         const geom::GeometryFactory* geomFact;
00064         Dimensions dim;
00065         int nPts;
00066 public:
00077         GeometricShapeFactory(const geom::GeometryFactory *factory);
00078 
00079         ~GeometricShapeFactory();
00080 
00086         geom::LineString* createArc(double startAng, double endAng);
00087 
00093         geom::Polygon* createCircle();
00094 
00100         geom::Polygon* createRectangle();
00101 
00110         void setBase(const geom::Coordinate& base);
00111 
00119         void setCentre(const geom::Coordinate& centre);
00120 
00126         void setHeight(double height);
00127 
00131         void setNumPoints(int nNPts);
00132 
00139         void setSize(double size);
00140 
00146         void setWidth(double width);
00147 
00148 };
00149 
00150 } // namespace geos::util
00151 } // namespace geos
00152 
00153 #endif // GEOS_UTIL_GEOMETRICSHAPEFACTORY_H
00154 
00155 /**********************************************************************
00156  * $Log$
00157  * Revision 1.1  2006/03/09 16:46:49  strk
00158  * geos::geom namespace definition, first pass at headers split
00159  *
00160  **********************************************************************/

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