Class MinimalEdgeRing

1
2
3	/*
4	* Copyright (c) 2016 Vivid Solutions.
5	*
6	* All rights reserved. This program and the accompanying materials
7	* are made available under the terms of the Eclipse Public License 2.0
8	* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
9	* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v20.html
10	* and the Eclipse Distribution License is available at
11	*
12	* http://www.eclipse.org/org/documents/edl-v10.php.
13	*/
14	package org.locationtech.jts.operation.overlay;
15
16	import org.locationtech.jts.geom.GeometryFactory;
17	import org.locationtech.jts.geomgraph.DirectedEdge;
18	import org.locationtech.jts.geomgraph.Edge;
19	import org.locationtech.jts.geomgraph.EdgeRing;
20
21	/**
22	* A ring of {@link Edge}s with the property that no node
23	* has degree greater than 2. These are the form of rings required
24	* to represent polygons under the OGC SFS spatial data model.
25	*
26	* @version 1.7
27	* @see org.locationtech.jts.operation.overlay.MaximalEdgeRing
28	*/
29	public class MinimalEdgeRing
30	extends EdgeRing
31	{
32
33	public MinimalEdgeRing(DirectedEdge start, GeometryFactory geometryFactory) {
34	super(start, geometryFactory);
35	}
36
37	public DirectedEdge getNext(DirectedEdge de)
38	{
39	return de.getNextMin();
40	}
41	public void setEdgeRing(DirectedEdge de, EdgeRing er)
42	{
43	de.setMinEdgeRing(er);
44	}
45
46	}
47