/*
* 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.test.function;
import java.util.ArrayList;
import java.util.List;
import com.revolsys.geometry.model.Geometry;
public class OverlayFunctions {
public static Geometry clip(final Geometry a, final Geometry mask) {
final List geoms = new ArrayList();
for (int i = 0; i < a.getGeometryCount(); i++) {
final Geometry clip = a.getGeometry(i).intersection(mask);
geoms.add(clip);
}
return FunctionsUtil.buildGeometry(geoms, a);
}
public static Geometry difference(final Geometry a, final Geometry b) {
return a.difference(b);
}
public static Geometry differenceBA(final Geometry a, final Geometry b) {
return b.difference(a);
}
public static Geometry intersection(final Geometry a, final Geometry b) {
return a.intersection(b);
}
public static Geometry symDifference(final Geometry a, final Geometry b) {
return a.symDifference(b);
}
public static Geometry unaryUnion(final Geometry a) {
return a.union();
}
public static Geometry union(final Geometry a, final Geometry b) {
return a.union(b);
}
public static Geometry unionUsingGeometryCollection(final Geometry a, final Geometry b) {
final Geometry gc = a.getGeometryFactory().geometry(a, b);
return gc.union();
}
}