com.vividsolutions.jts.geomgraph.EdgeNodingValidator Maven / Gradle / Ivy
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/*
* 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.geomgraph;
import java.util.*;
import com.vividsolutions.jts.noding.*;
/**
* Validates that a collection of {@link Edge}s is correctly noded.
* Throws an appropriate exception if an noding error is found.
*
* @version 1.7
*/
public class EdgeNodingValidator
{
/**
* Checks whether the supplied {@link Edge}s
* are correctly noded.
* Throws a {@link TopologyException} if they are not.
*
* @param edges a collection of Edges.
* @throws TopologyException if the SegmentStrings are not correctly noded
*
*/
public static void checkValid(Collection edges)
{
EdgeNodingValidator validator = new EdgeNodingValidator(edges);
validator.checkValid();
}
public static Collection toSegmentStrings(Collection edges)
{
// convert Edges to SegmentStrings
Collection segStrings = new ArrayList();
for (Iterator i = edges.iterator(); i.hasNext(); ) {
Edge e = (Edge) i.next();
segStrings.add(new BasicSegmentString(e.getCoordinates(), e));
}
return segStrings;
}
private FastNodingValidator nv;
/**
* Creates a new validator for the given collection of {@link Edge}s.
*
* @param edges a collection of Edges.
*/
public EdgeNodingValidator(Collection edges)
{
nv = new FastNodingValidator(toSegmentStrings(edges));
}
/**
* Checks whether the supplied edges
* are correctly noded. Throws an exception if they are not.
*
* @throws TopologyException if the SegmentStrings are not correctly noded
*
*/
public void checkValid()
{
nv.checkValid();
}
}