/*
* 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.revolsys.geometry.operation.relate;
import com.revolsys.geometry.geomgraph.EdgeEnd;
import com.revolsys.geometry.geomgraph.EdgeEndStar;
import com.revolsys.geometry.model.IntersectionMatrix;
/**
* An ordered list of {@link EdgeEndBundle}s around a {@link RelateNode}.
* They are maintained in CCW order (starting with the positive x-axis) around the node
* for efficient lookup and topology building.
*
* @version 1.7
*/
public class EdgeEndBundleStar extends EdgeEndStar<EdgeEndBundle> {
/**
* Creates a new empty EdgeEndBundleStar
*/
public EdgeEndBundleStar() {
}
/**
* Insert a EdgeEnd in order in the list.
* If there is an existing EdgeStubBundle which is parallel, the EdgeEnd is
* added to the bundle. Otherwise, a new EdgeEndBundle is created
* to contain the EdgeEnd.
* <br>
*/
@Override
public void insert(final EdgeEnd e) {
EdgeEndBundle eb = this.edgeMap.get(e);
if (eb == null) {
eb = new EdgeEndBundle(e);
insertEdgeEnd(e, eb);
} else {
eb.insert(e);
}
}
/**
* Update the IM with the contribution for the EdgeStubs around the node.
*/
void updateIM(final IntersectionMatrix im) {
for (final EdgeEndBundle esb : this) {
esb.updateIM(im);
}
}
}