playground.yu.utils.charts.XYScatterLineChart.java Source code

Introduction

Here is the source code for playground.yu.utils.charts.XYScatterLineChart.java

Source

/* *********************************************************************** *
 * project: org.matsim.*
 * XYScatterChart.java
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 * copyright       : (C) 2007 by the members listed in the COPYING,        *
 *                   LICENSE and WARRANTY file.                            *
 * email           : info at matsim dot org                                *
 *                                                                         *
 * *********************************************************************** *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *   See also COPYING, LICENSE and WARRANTY file                           *
 *                                                                         *
 * *********************************************************************** */

package playground.yu.utils.charts;

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.matsim.core.utils.charts.XYScatterChart;

/**
 * Creates a new XY-ScatterChart.
 * 
 * @author mrieser
 */
public class XYScatterLineChart extends XYScatterChart {

    public XYScatterLineChart(String title, String xAxisLabel, String yAxisLabel) {
        super(title, xAxisLabel, yAxisLabel);
        this.dataset = new XYSeriesCollection();
        this.chart = createChart(title, xAxisLabel, yAxisLabel, this.dataset);
        addDefaultFormatting();
    }

    private final XYSeriesCollection dataset;

    private JFreeChart createChart(final String title, final String categoryAxisLabel, final String valueAxisLabel,
            final XYSeriesCollection dataset) {
        // return ChartFactory.createScatterPlot(title, categoryAxisLabel,
        // valueAxisLabel, dataset, PlotOrientation.VERTICAL, true, // legend?
        // false, // tooltips?
        // false // URLs?
        // );
        NumberAxis xAxis = new NumberAxis(categoryAxisLabel);
        xAxis.setAutoRangeIncludesZero(false);
        xAxis.setRange(0, 24);
        NumberAxis yAxis = new NumberAxis(valueAxisLabel);
        yAxis.setAutoRangeIncludesZero(true);
        yAxis.setRange(0, 100);

        XYPlot plot = new XYPlot(dataset, xAxis, yAxis, null);

        XYItemRenderer renderer = new XYLineAndShapeRenderer(true, true);
        renderer.setBaseToolTipGenerator(null/* XYToolTipGenerator */);
        renderer.setURLGenerator(null/* urlGenerator */);
        plot.setRenderer(renderer);
        plot.setOrientation(PlotOrientation.VERTICAL);

        JFreeChart chart = new JFreeChart(title, JFreeChart.DEFAULT_TITLE_FONT, plot, true/* legend */);
        return chart;
    }

    /**
     * Adds a new data series to the chart with the specified title.
     * <code>xs<code> and <code>ys</code> should have the same length. If not,
     * only as many items are shown as the shorter array contains.
     * 
     * @param title
     * @param xs
     *            The x values.
     * @param ys
     *            The y values.
     */
    @Override
    public void addSeries(final String title, final double[] xs, final double[] ys) {
        XYSeries series = new XYSeries(title, false, true);
        for (int i = 0, n = Math.min(xs.length, ys.length); i < n; i++) {
            series.add(xs[i], ys[i]);
        }
        this.dataset.addSeries(series);
    }
}