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RectangleIntersects.h

00001 /**********************************************************************
00002  * $Id: RectangleIntersects.h 2781 2009-12-03 19:48:04Z 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  *
00016  * Last port: operation/predicate/RectangleIntersects.java rev 1.4 (JTS-1.10)
00017  *
00018  **********************************************************************/
00019 
00020 #ifndef GEOS_OP_PREDICATE_RECTANGLEINTERSECTS_H
00021 #define GEOS_OP_PREDICATE_RECTANGLEINTERSECTS_H
00022 
00023 #include <geos/export.h>
00024 
00025 #include <geos/geom/Polygon.h> // for inlines
00026 
00027 // Forward declarations
00028 namespace geos {
00029         namespace geom {
00030                 class Envelope;
00031                 //class Polygon;
00032         }
00033 }
00034 
00035 namespace geos {
00036 namespace operation { // geos::operation
00037 namespace predicate { // geos::operation::predicate
00038 
00048 class GEOS_DLL RectangleIntersects {
00049 
00050 private:
00051 
00052         const geom::Polygon &rectangle;
00053 
00054         const geom::Envelope &rectEnv;
00055 
00056     // Declare type as noncopyable
00057     RectangleIntersects(const RectangleIntersects& other);
00058     RectangleIntersects& operator=(const RectangleIntersects& rhs);
00059 
00060 public:
00061 
00069         static const size_t MAXIMUM_SCAN_SEGMENT_COUNT;
00070 
00076         RectangleIntersects(const geom::Polygon &newRect)
00077                 :
00078                 rectangle(newRect),
00079                 rectEnv(*(newRect.getEnvelopeInternal()))
00080         {}
00081 
00082         bool intersects(const geom::Geometry& geom);
00083 
00084         static bool intersects(const geom::Polygon &rectangle,
00085                         const geom::Geometry &b)
00086         {
00087                 RectangleIntersects rp(rectangle); 
00088                 return rp.intersects(b);
00089         }
00090 
00091 };
00092 
00093 
00094 } // namespace geos::operation::predicate
00095 } // namespace geos::operation
00096 } // namespace geos
00097 
00098 #endif // ifndef GEOS_OP_PREDICATE_RECTANGLEINTERSECTS_H

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