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/**********************************************************************
* $Id: PolygonizeDirectedEdge.cpp 1820 2006-09-06 16:54:23Z mloskot $
*
* 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.
*
**********************************************************************/
#include <geos/operation/polygonize/PolygonizeDirectedEdge.h>
#include <geos/planargraph/DirectedEdge.h>
using namespace geos::planargraph;
using namespace geos::geom;
namespace geos {
namespace operation { // geos.operation
namespace polygonize { // geos.operation.polygonize
/**
* Constructs a directed edge connecting the <code>from</code> node to the
* <code>to</code> node.
*
* @param directionPt
* specifies this DirectedEdge's direction (given by an imaginary
* line from the <code>from</code> node to <code>directionPt</code>)
*
* @param edgeDirection
* whether this DirectedEdge's direction is the same as or
* opposite to that of the parent Edge (if any)
*/
PolygonizeDirectedEdge::PolygonizeDirectedEdge(Node *newFrom,
Node *newTo, const Coordinate& newDirectionPt,
bool nEdgeDirection)
:
DirectedEdge(newFrom, newTo,
newDirectionPt, nEdgeDirection)
{
edgeRing=NULL;
next=NULL;
label=-1;
}
/*
* Returns the identifier attached to this directed edge.
*/
long
PolygonizeDirectedEdge::getLabel() const
{
return label;
}
/*
* Attaches an identifier to this directed edge.
*/
void PolygonizeDirectedEdge::setLabel(long newLabel) {
label=newLabel;
}
/*
* Returns the next directed edge in the EdgeRing that this directed
* edge is a member of.
*/
PolygonizeDirectedEdge *
PolygonizeDirectedEdge::getNext() const
{
return next;
}
/*
* Sets the next directed edge in the EdgeRing that this directed
* edge is a member of.
*/
void
PolygonizeDirectedEdge::setNext(PolygonizeDirectedEdge *newNext)
{
next=newNext;
}
/*
* Returns the ring of directed edges that this directed edge is
* a member of, or null if the ring has not been set.
* @see #setRing(EdgeRing)
*/
bool
PolygonizeDirectedEdge::isInRing() const
{
return edgeRing!=NULL;
}
/*
* Sets the ring of directed edges that this directed edge is
* a member of.
*/
void
PolygonizeDirectedEdge::setRing(EdgeRing *newEdgeRing)
{
edgeRing=newEdgeRing;
}
} // namespace geos.operation.polygonize
} // namespace geos.operation
} // namespace geos
/**********************************************************************
* $Log$
* Revision 1.7 2006/03/22 11:19:06 strk
* opPolygonize.h headers split.
*
**********************************************************************/
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