/usr/include/geos/index/chain/MonotoneChainOverlapAction.h is in libgeos-dev 3.2.2-3ubuntu1.
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* $Id: MonotoneChainOverlapAction.h 2556 2009-06-06 22:22:28Z strk $
*
* GEOS - Geometry Engine Open Source
* http://geos.refractions.net
*
* 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: index/chain/MonotoneChainOverlapAction.java rev. 1.6 (JTS-1.10)
*
**********************************************************************/
#ifndef GEOS_IDX_CHAIN_MONOTONECHAINOVERLAPACTION_H
#define GEOS_IDX_CHAIN_MONOTONECHAINOVERLAPACTION_H
#include <geos/export.h>
#include <geos/geom/LineSegment.h>
#include <geos/geom/Envelope.h>
// Forward declarations
namespace geos {
namespace index {
namespace chain {
class MonotoneChain;
}
}
}
namespace geos {
namespace index { // geos::index
namespace chain { // geos::index::chain
/**
* The action for the internal iterator for performing
* overlap queries on a MonotoneChain
*/
class GEOS_DLL MonotoneChainOverlapAction {
protected:
geom::LineSegment overlapSeg1;
geom::LineSegment overlapSeg2;
public:
MonotoneChainOverlapAction() {};
virtual ~MonotoneChainOverlapAction() {};
/**
* This function can be overridden if the original chains are needed
*
* @param start1 the index of the start of the overlapping segment
* from mc1
* @param start2 the index of the start of the overlapping segment
* from mc2
*/
virtual void overlap(MonotoneChain& mc1, size_t start1,
MonotoneChain& mc2, size_t start2);
/**
* This is a convenience function which can be overridden to
* obtain the actual line segments which overlap
* @param seg1
* @param seg2
*/
virtual void overlap(const geom::LineSegment& /*seg1*/,
const geom::LineSegment& /*seg2*/)
{}
// these envelopes are used during the MonotoneChain search process
geom::Envelope tempEnv1;
geom::Envelope tempEnv2;
};
} // namespace geos::index::chain
} // namespace geos::index
} // namespace geos
#endif // GEOS_IDX_CHAIN_MONOTONECHAINOVERLAPACTION_H
/**********************************************************************
* $Log$
* Revision 1.1 2006/03/22 18:12:31 strk
* indexChain.h header split.
*
**********************************************************************/
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