2 * Copyright 2006 the original author or authors.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
17 package org.wamblee.gpx;
19 import java.io.IOException;
20 import java.io.InputStream;
21 import java.util.Iterator;
23 import javax.xml.parsers.ParserConfigurationException;
25 import org.dom4j.Document;
26 import org.dom4j.Element;
27 import org.wamblee.gps.track.Track;
28 import org.wamblee.gps.track.TrackPoint;
29 import org.wamblee.xml.DomUtils;
30 import org.xml.sax.SAXException;
33 * Parser for GPX tracks.
35 public class GpxParser {
41 public Track parse(InputStream aIs) throws SAXException, ParserConfigurationException, IOException {
42 Document doc = DomUtils.convert(DomUtils.read(aIs));
49 public Track parse(Document doc) {
50 Track track = new Track();
51 Element root = doc.getRootElement().element("trk").element("trkseg");
52 for ( Iterator i =root.elementIterator("trkpt"); i.hasNext(); ) {
53 Element trkpt = (Element)i.next();
54 track.addPoint(parseTrackPoint(trkpt));
62 private TrackPoint parseTrackPoint(Element trkpt) {
63 //System.out.println(trkpt.asXML() + "|\n");
64 double latitude = new Double(trkpt.attributeValue("lat"));
65 double longitude = new Double(trkpt.attributeValue("lon"));
66 double elevation = new Double(trkpt.elementText("ele"));
67 //System.out.println(" lat = " + lat + " lon = " + lon + " ele = " + ele);
68 return new TrackPoint(latitude, longitude, elevation);