/*
* The JTS Topology Suite is a collection of Java classes that
* implement the fundamental operations required to validate a given
* geo-spatial data set to a known topological specification.
*
* Copyright (C) 2001 Vivid Solutions
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* For more information, contact:
*
* Vivid Solutions
* Suite #1A
* 2328 Government Street
* Victoria BC V8T 5G5
* Canada
*
* (250)385-6040
* www.vividsolutions.com
*/
package com.vividsolutions.jts.operation.relate;
/**
* A RelateNode is a Node that maintains a list of EdgeStubs
* for the edges that are incident on it.
*
* @version 1.7
*/
import java.io.PrintStream;
import java.util.*;
import com.vividsolutions.jts.geom.*;
import com.vividsolutions.jts.util.*;
import com.vividsolutions.jts.geomgraph.*;
/**
* Represents a node in the topological graph used to compute spatial relationships.
*
* @version 1.7
*/
public class RelateNode
extends Node
{
public RelateNode(Coordinate coord, EdgeEndStar edges)
{
super(coord, edges);
}
/**
* Update the IM with the contribution for this component.
* A component only contributes if it has a labelling for both parent geometries
*/
protected void computeIM(IntersectionMatrix im)
{
im.setAtLeastIfValid(label.getLocation(0), label.getLocation(1), 0);
}
/**
* Update the IM with the contribution for the EdgeEnds incident on this node.
*/
void updateIMFromEdges(IntersectionMatrix im)
{
((EdgeEndBundleStar) edges).updateIM(im);
}
}