--- /dev/null
+/*
+ * Copyright 2006 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * 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.awt.Color;
+import java.awt.Image;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.List;
+
+import org.jfree.chart.ChartFactory;
+import org.jfree.chart.ChartFrame;
+import org.jfree.chart.ChartUtilities;
+import org.jfree.chart.JFreeChart;
+import org.jfree.chart.axis.NumberAxis;
+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.data.xy.XYSeries;
+import org.jfree.data.xy.XYSeriesCollection;
+import org.wamblee.general.Pair;
+import org.wamblee.gps.geometry.Plane;
+import org.wamblee.gps.geometry.Point;
+import org.wamblee.gps.geometry.ReferenceCoordinateSystem;
+import org.wamblee.gps.track.Track;
+import org.wamblee.utils.JpegUtils;
+
+/**
+ * Parses a GPX file and prints out a data file with each trackpoints distance from the start of the
+ * 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]);
+ 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);
+ List<Pair<Double,Double>> trackLatLon = computeTrackLatLon(track);
+ plotTrack(trackLatLon);
+ }
+
+ private static List<Pair<Double, Double>> computeElevationProfile(Track aTrack) {
+ List<Pair<Double,Double>> results = new ArrayList<Pair<Double,Double>>();
+ double distance = 0.0;
+ for (int i = 0; i < aTrack.size(); i++) {
+ Point point = aTrack.getPoint(i);
+ results.add(new Pair<Double,Double>(distance, point.getCoordinates().getX3()));
+ if ( i+1 < aTrack.size()) {
+ Point nextPoint = aTrack.getPoint(i+1);
+ distance += ReferenceCoordinateSystem.distance(point, nextPoint);
+ }
+ }
+ return results;
+ }
+
+ private static List<Pair<Double, Double>> computeTrackXY(Track aTrack) {
+ Point reference = aTrack.getPoint(0);
+ Plane plane = new Plane(reference, reference); // assume the earth is spherical.
+ List<Pair<Double,Double>> results = new ArrayList<Pair<Double,Double>>();
+ for (int i = 0; i < aTrack.size(); i++) {
+ Point point = aTrack.getPoint(i);
+ Pair<Double,Double> projection = plane.normalizedProjection(point);
+ results.add(projection);
+ System.out.println(point);
+ }
+ 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) {
+ for (Pair<Double,Double> point: aHeightProfile) {
+ System.out.println(point.getFirst() + " " + point.getSecond());
+ }
+ }
+
+ private static void computeTotalClimb(List<Pair<Double,Double>> aHeightProfile) {
+ double result = 0.0;
+
+ double lastHeight = aHeightProfile.get(0).getSecond();
+ for ( int i = 1; i < aHeightProfile.size(); i++) {
+ double height = aHeightProfile.get(i).getSecond();
+ if ( height > lastHeight) {
+ result += (height-lastHeight);
+ }
+ lastHeight = height;
+ }
+ System.out.println("Total climb: " + result);
+ }
+
+ private static void plotElevationProfile(List<Pair<Double,Double>> aHeightProfile) throws IOException {
+ XYSeriesCollection dataset = createDataset(aHeightProfile, "height");
+ JFreeChart chart = ChartFactory.createXYLineChart(
+ "Height Profile",
+ "Distance(m)",
+ "Height(m)",
+ dataset,
+ PlotOrientation.VERTICAL,
+ true,
+ true,
+ false);
+ ChartUtilities.writeChartAsPNG(new FileOutputStream("height.png"), chart, 600, 300);
+ ChartFrame frame = new ChartFrame("test", chart);
+ frame.pack();
+ frame.setVisible(true);
+ }
+
+ private static void plotTrack(List<Pair<Double,Double>> aPoints) throws IOException, InterruptedException {
+ XYSeriesCollection dataset = createDataset(aPoints, "track");
+ JFreeChart chart = createLineChart(dataset);
+
+ 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);
+
+ ChartUtilities.writeChartAsPNG(new FileOutputStream("test.png"), chart, 1280, 800);
+ ChartFrame frame = new ChartFrame("test", chart);
+ frame.pack();
+ frame.setVisible(true);
+ }
+
+ /**
+ * @param dataset
+ * @return
+ */
+ 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);
+
+ JFreeChart chart = new JFreeChart(
+ "Track", JFreeChart.DEFAULT_TITLE_FONT, plot, true
+ );
+
+ return chart;
+ /*
+ JFreeChart chart = ChartFactory.createXYLineChart(
+ "Track",
+ "S->N",
+ "W->E",
+ dataset,
+ PlotOrientation.HORIZONTAL,
+ true,
+ true,
+ false);
+ return chart;
+ */
+ }
+
+ /**
+ * @param aHeightProfile
+ * @return
+ */
+ private static XYSeriesCollection createDataset(List<Pair<Double, Double>> aHeightProfile, String aName) {
+ XYSeries series = new XYSeries(aName, false);
+ for (Pair<Double,Double> point: aHeightProfile) {
+ series.add(point.getFirst(), point.getSecond());
+ }
+ XYSeriesCollection dataset = new XYSeriesCollection(series);
+ 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