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/**********************************************************************
* $Id: MaximalEdgeRing.cpp 1820 2006-09-06 16:54:23Z mloskot $
*
* 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/overlay/MaximalEdgeRing.java rev. 1.13
*
**********************************************************************/
#include <geos/operation/overlay/MaximalEdgeRing.h>
#include <geos/operation/overlay/MinimalEdgeRing.h>
#include <geos/geomgraph/EdgeRing.h>
#include <geos/geomgraph/DirectedEdge.h>
#include <geos/geomgraph/Node.h>
#include <geos/geomgraph/EdgeEndStar.h>
#include <geos/geomgraph/DirectedEdgeStar.h>
#include <cassert>
#include <vector>
#ifndef GEOS_DEBUG
#define GEOS_DEBUG 0
#endif
#if GEOS_DEBUG
#include <iostream>
#endif
using namespace std;
using namespace geos::geomgraph;
using namespace geos::geom;
namespace geos {
namespace operation { // geos.operation
namespace overlay { // geos.operation.overlay
/*public*/
// CGAlgorithms obsoleted
MaximalEdgeRing::MaximalEdgeRing(DirectedEdge *start,
const GeometryFactory *geometryFactory)
:
EdgeRing(start, geometryFactory)
{
computePoints(start);
computeRing();
#if GEOS_DEBUG
cerr << "MaximalEdgeRing[" << this << "] ctor" << endl;
#endif
}
/*public*/
MaximalEdgeRing::~MaximalEdgeRing()
{
#if GEOS_DEBUG
cerr << "MaximalEdgeRing[" << this << "] dtor" << endl;
#endif
}
/*public*/
DirectedEdge*
MaximalEdgeRing::getNext(DirectedEdge *de)
{
return de->getNext();
}
/*public*/
void
MaximalEdgeRing::setEdgeRing(DirectedEdge *de,EdgeRing *er)
{
de->setEdgeRing(er);
}
/*public*/
void
MaximalEdgeRing::linkDirectedEdgesForMinimalEdgeRings()
{
DirectedEdge* de=startDe;
do {
Node* node=de->getNode();
EdgeEndStar* ees = node->getEdges();
assert(dynamic_cast<DirectedEdgeStar*>(ees));
DirectedEdgeStar* des = static_cast<DirectedEdgeStar*>(ees);
des->linkMinimalDirectedEdges(this);
de=de->getNext();
} while (de!=startDe);
}
/*public*/
vector<MinimalEdgeRing*>*
MaximalEdgeRing::buildMinimalRings()
{
vector<MinimalEdgeRing*> *minEdgeRings=new vector<MinimalEdgeRing*>;
buildMinimalRings(*minEdgeRings);
return minEdgeRings;
}
/*public*/
void
MaximalEdgeRing::buildMinimalRings(vector<MinimalEdgeRing*>& minEdgeRings)
{
DirectedEdge *de=startDe;
do {
if(de->getMinEdgeRing()==NULL) {
MinimalEdgeRing *minEr=new MinimalEdgeRing(de, geometryFactory);
minEdgeRings.push_back(minEr);
}
de=de->getNext();
} while(de!=startDe);
}
} // namespace geos.operation.overlay
} // namespace geos.operation
} // namespace geos
/**********************************************************************
* $Log$
* Revision 1.19 2006/03/27 16:02:34 strk
* Added INL file for MinimalEdgeRing, added many debugging blocks,
* fixed memory leak in ConnectedInteriorTester (bug #59)
*
* Revision 1.18 2006/03/17 13:24:59 strk
* opOverlay.h header splitted. Reduced header inclusions in operation/overlay implementation files. ElevationMatrixFilter code moved from own file to ElevationMatrix.cpp (ideally a class-private).
*
* Revision 1.17 2006/03/14 17:08:04 strk
* comments cleanup, integrity checks
*
* Revision 1.16 2006/03/09 18:18:39 strk
* Added memory-friendly MaximalEdgeRing::buildMinimalRings() implementation.
* Applied patch to IsValid operation from JTS-1.7.1
*
**********************************************************************/
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