package org.wamblee.gpx;
import java.awt.Color;
-import java.awt.Graphics2D;
import java.awt.Image;
import java.io.File;
import java.io.FileInputStream;
-import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
-import javax.xml.parsers.ParserConfigurationException;
-
import org.dom4j.Document;
import org.dom4j.Element;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
-import org.jfree.chart.labels.StandardXYToolTipGenerator;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.renderer.xy.XYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
-import org.jfree.chart.urls.StandardXYURLGenerator;
-import org.jfree.data.Range;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.wamblee.general.Pair;
import org.wamblee.gps.track.TrackPoint;
import org.wamblee.utils.JpegUtils;
import org.wamblee.xml.DomUtils;
-import org.xml.sax.SAXException;
/**
* Parses a GPX file and prints out a data file with each trackpoints distance from the start of the
- * track and its elevation, separated by a space.
+ * track and its elevation, separated 0by a space.
*/
public class GpxPlotter {
public static void main(String[] aArgs) throws Exception {
- File file = new File(aArgs[0]);
- Document doc = DomUtils.convert(DomUtils.read(new FileInputStream(file)));
-
- Track track = parseTrack(doc);
+ File file = new File(aArgs[0]);
+ GpxParser parser = new GpxParser();
+ Track track = parser.parse(new FileInputStream(file));
List<Pair<Double,Double>> elevationProfile = computeElevationProfile(track);
printTrack(elevationProfile);
computeTotalClimb(elevationProfile);
plotElevationProfile(elevationProfile);
List<Pair<Double,Double>> trackXy = computeTrackXY(track);
- plotTrack(trackXy);
- }
-
- /**
- * @param doc
- */
- private static Track parseTrack(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 static TrackPoint parseTrackPoint(Element trkpt) {
- //System.out.println(trkpt.asXML() + "|\n");
- double latitude = new Double(trkpt.attributeValue("lat"));
- double longitude = new Double(trkpt.attributeValue("lon"));
- double elevation = new Double(trkpt.elementText("ele"));
- //System.out.println(" lat = " + lat + " lon = " + lon + " ele = " + ele);
- return new TrackPoint(latitude, longitude, elevation);
+ List<Pair<Double,Double>> trackLatLon = computeTrackLatLon(track);
+ plotTrack(trackLatLon);
}
private static List<Pair<Double, Double>> computeElevationProfile(Track aTrack) {
return results;
}
+ private static List<Pair<Double, Double>> computeTrackLatLon(Track aTrack) {
+ List<Pair<Double,Double>> results = new ArrayList<Pair<Double,Double>>();
+ for (int i = 0; i < aTrack.size(); i++) {
+ Point point = aTrack.getPoint(i);
+ results.add(new Pair<Double,Double>(point.getCoordinates().getX1(), point.getCoordinates().getX2()));
+ }
+ return results;
+ }
+
private static void printTrack(List<Pair<Double,Double>> aHeightProfile) {
private static void plotTrack(List<Pair<Double,Double>> aPoints) throws IOException, InterruptedException {
XYSeriesCollection dataset = createDataset(aPoints, "track");
JFreeChart chart = createLineChart(dataset);
- Range range = chart.getXYPlot().getRangeAxis().getRange();
+
+ Pair<Pair<Double,Double>,Pair<Double,Double>> bounds = getBounds(aPoints);
+
+ chart.getXYPlot().getDomainAxis().setLowerBound(bounds.getFirst().getFirst());
+ chart.getXYPlot().getDomainAxis().setUpperBound(bounds.getFirst().getSecond());
+
+ chart.getXYPlot().getRangeAxis().setLowerBound(bounds.getSecond().getFirst());
+ chart.getXYPlot().getRangeAxis().setUpperBound(bounds.getSecond().getSecond());
Image background = JpegUtils.loadJpegImage(new FileInputStream("/home/erik/vakantie.jpg"));
chart.getPlot().setBackgroundImage(background);
-
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer)chart.getXYPlot().getRenderer();
renderer.setShapesVisible(true);
renderer.setShapesFilled(true);
renderer.setPaint(Color.BLACK);
-
- //renderer.setStroke(new BasicStroke(2.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
- // 1.0f, new float[] { 6.0f, 6.0f}, 0.0f));
- System.out.println("Range: " + range.getLowerBound() + " " + range.getUpperBound());
- ChartUtilities.writeChartAsPNG(new FileOutputStream("test.png"), chart, 600, 300);
+ ChartUtilities.writeChartAsPNG(new FileOutputStream("test.png"), chart, 1280, 800);
ChartFrame frame = new ChartFrame("test", chart);
frame.pack();
frame.setVisible(true);
private static JFreeChart createLineChart(XYSeriesCollection dataset) {
NumberAxis xAxis = new NumberAxis("S->N");
xAxis.setAutoRangeIncludesZero(false);
+
NumberAxis yAxis = new NumberAxis("W->E");
+ yAxis.setAutoRangeIncludesZero(false);
+
XYItemRenderer renderer = new XYLineAndShapeRenderer(true, false);
XYPlot plot = new ZoomableBackgroundXYPlot(dataset, xAxis, yAxis, renderer);
plot.setOrientation(PlotOrientation.HORIZONTAL);
return dataset;
}
+ private static Pair<Pair<Double,Double>,Pair<Double,Double>> getBounds(List<Pair<Double,Double>> aList) {
+ Pair<Double,Double> first = aList.get(0);
+ double minx= first.getFirst();
+ double maxx = minx;
+ double miny = first.getSecond();
+ double maxy = miny;
+
+ for (int i = 0; i < aList.size(); i++) {
+ Pair<Double,Double> value = aList.get(i);
+ minx = Math.min(minx, value.getFirst());
+ maxx = Math.max(maxx, value.getFirst());
+ miny = Math.min(miny, value.getSecond());
+ maxy = Math.max(maxy, value.getSecond());
+ }
+ if ( maxx == minx ) {
+ maxx += 1.0; // to avoid problems.
+ }
+ if ( maxy == miny ) {
+ maxy += 1.0; // to avoid problems.
+ }
+ final double paddingFactor = 0.3; // allow some space around min and max
+ return new Pair<Pair<Double,Double>,Pair<Double,Double>>(
+ new Pair<Double,Double>( minx - paddingFactor*(maxx-minx),
+ maxx + paddingFactor*(maxx-minx)),
+ new Pair<Double,Double>( miny - paddingFactor*(maxy-miny),
+ maxy + paddingFactor*(maxy-miny))
+ );
+ }
}
git://wamblee.org / utils / blobdiff