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SIRtreePointInRing.h

00001 /**********************************************************************
00002  * $Id: SIRtreePointInRing.h 2556 2009-06-06 22:22:28Z 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 #ifndef GEOS_ALGORITHM_SIRTREEPOINTINRING_H
00018 #define GEOS_ALGORITHM_SIRTREEPOINTINRING_H
00019 
00020 #include <geos/export.h>
00021 #include <geos/algorithm/PointInRing.h> // for inheritance
00022 
00023 #include <vector>
00024 
00025 // Forward declarations
00026 namespace geos {
00027         namespace geom {
00028                 class Coordinate;
00029                 class LineSegment;
00030                 class LinearRing;
00031         }
00032         namespace index {
00033                 namespace strtree {
00034                         class SIRtree;
00035                 }
00036         }
00037 }
00038 
00039 
00040 namespace geos {
00041 namespace algorithm { // geos::algorithm
00042 
00043 class GEOS_DLL SIRtreePointInRing: public PointInRing {
00044 private:
00045         geom::LinearRing *ring;
00046         index::strtree::SIRtree *sirTree;
00047         int crossings;  // number of segment/ray crossings
00048         void buildIndex();
00049         void testLineSegment(const geom::Coordinate& p,
00050                         geom::LineSegment *seg);
00051 public:
00052         SIRtreePointInRing(geom::LinearRing *newRing);
00053         bool isInside(const geom::Coordinate& pt);
00054 };
00055 
00056 } // namespace geos::algorithm
00057 } // namespace geos
00058 
00059 
00060 #endif // GEOS_ALGORITHM_SIRTREEPOINTINRING_H
00061 
00062 /**********************************************************************
00063  * $Log$
00064  * Revision 1.2  2006/03/21 11:12:23  strk
00065  * Cleanups: headers inclusion and Log section
00066  *
00067  * Revision 1.1  2006/03/09 16:46:48  strk
00068  * geos::geom namespace definition, first pass at headers split
00069  *
00070  **********************************************************************/
00071 

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