/*
* Copyright (c) 2016 Vivid Solutions.
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Eclipse Distribution License v. 1.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
*
* http://www.eclipse.org/org/documents/edl-v10.php.
*/
package org.locationtech.jtstest.function;
import java.util.ArrayList;
import java.util.List;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.operation.valid.IsValidOp;
import org.locationtech.jts.operation.valid.TopologyValidationError;
public class ValidationFunctions
{
/**
* Validates all geometries in a collection independently.
* Errors are returned as points at the invalid location
*
* @param g
* @return the invalid locations, if any
*/
public static Geometry invalidLocations(Geometry g)
{
List invalidLoc = new ArrayList();
for (int i = 0; i < g.getNumGeometries(); i++) {
Geometry geom = g.getGeometryN(i);
IsValidOp ivop = new IsValidOp(geom);
TopologyValidationError err = ivop.getValidationError();
if (err != null) {
invalidLoc.add(g.getFactory().createPoint(err.getCoordinate()));
}
}
return g.getFactory().buildGeometry(invalidLoc);
}
public static Geometry invalidGeoms(Geometry g)
{
List invalidGeoms = new ArrayList();
for (int i = 0; i < g.getNumGeometries(); i++) {
Geometry geom = g.getGeometryN(i);
IsValidOp ivop = new IsValidOp(geom);
TopologyValidationError err = ivop.getValidationError();
if (err != null) {
invalidGeoms.add(geom);
}
}
return g.getFactory().buildGeometry(invalidGeoms);
}
public static boolean isValidAllowSelfTouchingRingFormingHole(Geometry g) {
IsValidOp validOp = new IsValidOp(g);
validOp.setSelfTouchingRingFormingHoleValid(true);
return validOp.isValid();
}
}