* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
- */
+ */
package org.wamblee.gpx;
import java.io.InputStream;
import java.util.Iterator;
+import java.util.List;
import org.dom4j.Document;
import org.dom4j.Element;
import org.wamblee.xml.XMLException;
/**
- * Parser for GPX tracks.
+ * Parser for GPX tracks.
+ *
+ * @author Erik Brakkee
*/
public class GpxParser {
-
- private static final String SCHEMA_RESOURCE = "gpx.xsd";
-
- public GpxParser() {
- // Empty.
- }
-
- public Track parse(InputStream aIs) throws XMLException {
- Document doc = DomUtils.convert(DomUtils.read(aIs));
- return parse(doc);
- }
-
- /**
- * @param doc
- */
- public Track parse(Document doc) {
- Track track = new Track();
- Element root = doc.getRootElement().element("trk").element("trkseg");
- for ( Iterator i =root.elementIterator("trkpt"); i.hasNext(); ) {
- Element trkpt = (Element)i.next();
- track.addPoint(parseTrackPoint(trkpt));
- }
- return track;
- }
- /**
- * @param trkpt
- */
- private TrackPoint parseTrackPoint(Element trkpt) {
- //System.out.println(trkpt.asXML() + "|\n");
- double latitude = new Double(trkpt.attributeValue("lat"));
- double longitude = new Double(trkpt.attributeValue("lon"));
- Element ele = trkpt.element("ele");
- double elevation = 0.0;
- if ( ele != null ) {
- elevation = new Double(ele.getText());
- }
- //System.out.println(" lat = " + lat + " lon = " + lon + " ele = " + ele);
- return new TrackPoint(latitude, longitude, elevation);
- }
+ private static final String SCHEMA_RESOURCE = "gpx.xsd";
+
+ public GpxParser() {
+ // Empty.
+ }
+
+ public Track parse(InputStream aIs) throws XMLException {
+ Document doc = DomUtils.convert(DomUtils.read(aIs));
+ return parse(doc);
+ }
+
+ /**
+ * @param doc
+ */
+ public Track parse(Document doc) {
+ Track track = new Track();
+ List<Element> segments = doc.getRootElement().element("trk").elements(
+ "trkseg");
+
+ for (Element segment : segments) {
+ for (Iterator i = segment.elementIterator("trkpt"); i.hasNext();) {
+ Element trkpt = (Element) i.next();
+ track.addPoint(parseTrackPoint(trkpt));
+ }
+ }
+ return track;
+ }
+
+ /**
+ * @param trkpt
+ */
+ private TrackPoint parseTrackPoint(Element trkpt) {
+ // System.out.println(trkpt.asXML() + "|\n");
+ double latitude = new Double(trkpt.attributeValue("lat"));
+ double longitude = new Double(trkpt.attributeValue("lon"));
+ Element ele = trkpt.element("ele");
+ double elevation = 0.0;
+ if (ele != null) {
+ elevation = new Double(ele.getText());
+ }
+ // System.out.println(" lat = " + lat + " lon = " + lon + " ele = " +
+ // ele);
+ return new TrackPoint(latitude, longitude, elevation);
+ }
}