/*
* 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.jts.geom.util;
import java.util.ArrayList;
import java.util.List;
import org.locationtech.jts.geom.Geometry;
import org.locationtech.jts.geom.GeometryCollection;
import org.locationtech.jts.geom.GeometryFactory;
import org.locationtech.jts.geom.util.GeometryMapper.MapOp;
/**
* Maps the members of a {@link GeometryCollection}
* into another <tt>GeometryCollection</tt> via a defined
* mapping function.
*
* @author Martin Davis
*
*/
public class GeometryCollectionMapper
{
public static GeometryCollection map(GeometryCollection gc, MapOp op)
{
GeometryCollectionMapper mapper = new GeometryCollectionMapper(op);
return mapper.map(gc);
}
private MapOp mapOp = null;
public GeometryCollectionMapper(MapOp mapOp) {
this.mapOp = mapOp;
}
public GeometryCollection map(GeometryCollection gc)
{
List mapped = new ArrayList();
for (int i = 0; i < gc.getNumGeometries(); i++) {
Geometry g = mapOp.map(gc.getGeometryN(i));
if (!g.isEmpty())
mapped.add(g);
}
return gc.getFactory().createGeometryCollection(
GeometryFactory.toGeometryArray(mapped));
}
}