PreparedLineString.h

00001 /**********************************************************************
00002  *
00003  * GEOS - Geometry Engine Open Source
00004  * http://geos.osgeo.org
00005  *
00006  * Copyright (C) 2006 Refractions Research Inc.
00007  *
00008  * This is free software; you can redistribute and/or modify it under
00009  * the terms of the GNU Lesser General Public Licence as published
00010  * by the Free Software Foundation. 
00011  * See the COPYING file for more information.
00012  *
00013  *
00014  **********************************************************************
00015  *
00016  * Last port: geom/prep/PreparedLineString.java rev 1.3 (JTS-1.10)
00017  *
00018  **********************************************************************/
00019 
00020 #ifndef GEOS_GEOM_PREP_PREPAREDLINESTRING_H
00021 #define GEOS_GEOM_PREP_PREPAREDLINESTRING_H
00022 
00023 #include <geos/geom/prep/BasicPreparedGeometry.h> // for inheritance
00024 #include <geos/noding/SegmentString.h> 
00025 
00026 namespace geos {
00027         namespace noding {
00028                 class FastSegmentSetIntersectionFinder;
00029         }
00030 }
00031 
00032 namespace geos {
00033 namespace geom { // geos::geom
00034 namespace prep { // geos::geom::prep
00035 
00043 class PreparedLineString : public BasicPreparedGeometry 
00044 {
00045 private:
00046         noding::FastSegmentSetIntersectionFinder * segIntFinder;
00047         mutable noding::SegmentString::ConstVect segStrings;
00048 
00049 protected:
00050 public:
00051         PreparedLineString(const Geometry * geom) 
00052                 : 
00053                 BasicPreparedGeometry( geom),
00054                 segIntFinder( NULL)
00055         { }
00056 
00057         ~PreparedLineString();
00058 
00059         noding::FastSegmentSetIntersectionFinder * getIntersectionFinder();
00060 
00061         bool intersects(const geom::Geometry * g) const;
00062 
00063 };
00064 
00065 } // namespace geos::geom::prep
00066 } // namespace geos::geom
00067 } // namespace geos
00068 
00069 #endif // GEOS_GEOM_PREP_PREPAREDLINESTRING_H

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