/* * 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.geom.util; import java.util.*; import com.vividsolutions.jts.geom.*; import com.vividsolutions.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)); } }