/* * 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.noding; import java.util.*; import com.vividsolutions.jts.geom.*; import com.vividsolutions.jts.geom.util.LinearComponentExtracter; /** * Utility methods for processing {@link SegmentString}s. * * @author Martin Davis * */ public class SegmentStringUtil { /** * Extracts all linear components from a given {@link Geometry} * to {@link SegmentString}s. * The SegmentString data item is set to be the source Geometry. * * @param geom the geometry to extract from * @return a List of SegmentStrings */ public static List extractSegmentStrings(Geometry geom) { List segStr = new ArrayList(); List lines = LinearComponentExtracter.getLines(geom); for (Iterator i = lines.iterator(); i.hasNext(); ) { LineString line = (LineString) i.next(); Coordinate[] pts = line.getCoordinates(); segStr.add(new NodedSegmentString(pts, geom)); } return segStr; } }