/usr/include/geos/operation/valid/SweeplineNestedRingTester.h is in libgeos-dev 3.2.2-3ubuntu1.
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* $Id: SweeplineNestedRingTester.h 2572 2009-06-08 22:10:55Z strk $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* Copyright (C) 2005-2006 Refractions Research Inc.
* Copyright (C) 2001-2002 Vivid Solutions Inc.
*
* This is free software; you can redistribute and/or modify it under
* the terms of the GNU Lesser General Public Licence as published
* by the Free Software Foundation.
* See the COPYING file for more information.
*
**********************************************************************
*
* Last port: operation/valid/SweeplineNestedRingTester.java rev. 1.12 (JTS-1.10)
*
**********************************************************************/
#ifndef GEOS_OP_SWEEPLINENESTEDRINGTESTER_H
#define GEOS_OP_SWEEPLINENESTEDRINGTESTER_H
#include <geos/export.h>
#include <vector>
#include <geos/geom/Envelope.h> // for inline
//#include <geos/indexSweepline.h> // for inline and inheritance
#include <geos/index/sweepline/SweepLineOverlapAction.h> // for inheritance
#include <geos/index/sweepline/SweepLineIndex.h> // for inlines
// Forward declarations
namespace geos {
namespace geom {
class LinearRing;
class Envelope;
class Coordinate;
}
namespace index {
namespace sweepline {
class SweepLineIndex;
}
}
namespace geomgraph {
class GeometryGraph;
}
}
namespace geos {
namespace operation { // geos::operation
namespace valid { // geos::operation::valid
/** \brief
* Tests whether any of a set of {@link LinearRing}s are
* nested inside another ring in the set, using an
* index::sweepline::SweepLineIndex to speed up the comparisons.
*/
class GEOS_DLL SweeplineNestedRingTester {
private:
geomgraph::GeometryGraph *graph; // used to find non-node vertices
std::vector<geom::LinearRing*> rings;
index::sweepline::SweepLineIndex *sweepLine;
geom::Coordinate *nestedPt;
void buildIndex();
public:
SweeplineNestedRingTester(geomgraph::GeometryGraph *newGraph)
:
graph(newGraph),
rings(),
sweepLine(new index::sweepline::SweepLineIndex()),
nestedPt(NULL)
{}
~SweeplineNestedRingTester()
{
delete sweepLine;
}
/*
* Be aware that the returned Coordinate (if != NULL)
* will point to storage owned by one of the LinearRing
* previously added. If you destroy them, this
* will point to an invalid memory address.
*/
geom::Coordinate *getNestedPoint() { return nestedPt; }
void add(geom::LinearRing* ring) {
rings.push_back(ring);
}
bool isNonNested();
bool isInside(geom::LinearRing *innerRing, geom::LinearRing *searchRing);
class OverlapAction: public index::sweepline::SweepLineOverlapAction {
public:
bool isNonNested;
OverlapAction(SweeplineNestedRingTester *p);
void overlap(index::sweepline::SweepLineInterval *s0,
index::sweepline::SweepLineInterval *s1);
private:
SweeplineNestedRingTester *parent;
};
};
} // namespace geos::operation::valid
} // namespace geos::operation
} // namespace geos
#endif // GEOS_OP_SWEEPLINENESTEDRINGTESTER_H
/**********************************************************************
* $Log$
* Revision 1.2 2006/06/01 10:28:47 strk
* Reduced number of installed headers for the geos::index namespace
*
* Revision 1.1 2006/03/20 16:57:44 strk
* spatialindex.h and opValid.h headers split
*
**********************************************************************/
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