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PreparedLineString.h

00001 /**********************************************************************
00002  * $Id: PreparedLineString.h 2811 2009-12-08 17:42:02Z strk $
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  *
00017  * Last port: geom/prep/PreparedLineString.java rev 1.3 (JTS-1.10)
00018  *
00019  **********************************************************************/
00020 
00021 #ifndef GEOS_GEOM_PREP_PREPAREDLINESTRING_H
00022 #define GEOS_GEOM_PREP_PREPAREDLINESTRING_H
00023 
00024 #include <geos/geom/prep/BasicPreparedGeometry.h> // for inheritance
00025 #include <geos/noding/SegmentString.h> 
00026 
00027 namespace geos {
00028         namespace noding {
00029                 class FastSegmentSetIntersectionFinder;
00030         }
00031 }
00032 
00033 namespace geos {
00034 namespace geom { // geos::geom
00035 namespace prep { // geos::geom::prep
00036 
00044 class PreparedLineString : public BasicPreparedGeometry 
00045 {
00046 private:
00047         noding::FastSegmentSetIntersectionFinder * segIntFinder;
00048         mutable noding::SegmentString::ConstVect segStrings;
00049 
00050 protected:
00051 public:
00052         PreparedLineString(const Geometry * geom) 
00053                 : 
00054                 BasicPreparedGeometry( geom),
00055                 segIntFinder( NULL)
00056         { }
00057 
00058         ~PreparedLineString();
00059 
00060         noding::FastSegmentSetIntersectionFinder * getIntersectionFinder();
00061 
00062         bool intersects(const geom::Geometry * g) const;
00063 
00064 };
00065 
00066 } // namespace geos::geom::prep
00067 } // namespace geos::geom
00068 } // namespace geos
00069 
00070 #endif // GEOS_GEOM_PREP_PREPAREDLINESTRING_H
00071 /**********************************************************************
00072  * $Log$
00073  **********************************************************************/
00074 
00075 

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