edu.ucla.stat.SOCR.chart.demo.StackedAreaChartDemo.java Source code

Introduction

Here is the source code for edu.ucla.stat.SOCR.chart.demo.StackedAreaChartDemo.java

Source

/****************************************************
Statistics Online Computational Resource (SOCR)
http://www.StatisticsResource.org
     
All SOCR programs, materials, tools and resources are developed by and freely disseminated to the entire community.
Users may revise, extend, redistribute, modify under the terms of the Lesser GNU General Public License
as published by the Open Source Initiative http://opensource.org/licenses/. All efforts should be made to develop and distribute
factually correct, useful, portable and extensible resource all available in all digital formats for free over the Internet.
     
SOCR resources are distributed in the hope that they will be useful, but without
any warranty; without any explicit, implicit or implied warranty for merchantability or
fitness for a particular purpose. See the GNU Lesser General Public License for
more details see http://opensource.org/licenses/lgpl-license.php.
     
http://www.SOCR.ucla.edu
http://wiki.stat.ucla.edu/socr
 It s Online, Therefore, It Exists! 
****************************************************/
package edu.ucla.stat.SOCR.chart.demo;

import java.awt.Color;
import java.beans.PropertyChangeListener;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.AreaRenderer;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;

import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable;
import edu.ucla.stat.SOCR.chart.SuperCategoryChart_Bar;
import edu.ucla.stat.SOCR.chart.gui.SOCRCategorySeriesLabelGenerator;

/**
 * A simple demonstration application showing how to create a stacked area 
 * chart using data from a {@link CategoryDataset}.
 */
/*not used*/
public class StackedAreaChartDemo extends SuperCategoryChart_Bar implements PropertyChangeListener {

    public void doTest() {
        JFreeChart chart;
        ChartGenerator_JTable chartMaker = new ChartGenerator_JTable();

        resetChart();
        showMessageDialog(chartTitle + " doTest get called!");

        int no_series = dataTable.getRowCount() - 1;
        int no_category = dataTable.getColumnCount() - 2;
        int[][] pairs = new int[no_category][2];
        for (int i = 0; i < no_category; i++) {
            pairs[i][0] = i + 1; //column i store category i
            pairs[i][1] = 0; //column 0 stores series name
        }
        chart = chartMaker.getCategoryChart("Bar", chartTitle, "Category", "value", dataTable, no_category, pairs,
                "stacked");
        chartPanel = new ChartPanel(chart, false);

        setChart();
    }

    /**
     * Creates a sample dataset.
     * 
     * @return A sample dataset.
     */
    protected CategoryDataset createDataset(boolean isDemo) {
        if (isDemo) {
            double[][] data = new double[][] { { 1.0, 4.0, 3.0, 5.0, 5.0, 7.0, 7.0, 8.0 },
                    { 5.0, 7.0, 6.0, 8.0, 4.0, 4.0, 2.0, 1.0 }, { 4.0, 3.0, 2.0, 3.0, 6.0, 3.0, 4.0, 3.0 } };

            CategoryDataset dataset = DatasetUtilities.createCategoryDataset("Series ", "Type ", data);
            return dataset;
        } else
            return super.createDataset(false);
    }

    /**
     * Creates a sample chart.
     * 
     * @param dataset  the dataset.
     * 
     * @return A sample chart.
     */
    protected JFreeChart createChart(CategoryDataset dataset) {

        JFreeChart chart = ChartFactory.createStackedAreaChart(chartTitle, // chart title
                domainLabel, // domain axis label
                rangeLabel, // range axis label
                dataset, // data
                PlotOrientation.VERTICAL, // orientation
                !legendPanelOn, // include legend
                true, false);

        chart.setBackgroundPaint(Color.white);

        CategoryPlot plot = (CategoryPlot) chart.getPlot();
        plot.setForegroundAlpha(0.85f);
        plot.setBackgroundPaint(Color.lightGray);
        plot.setDomainGridlinePaint(Color.white);
        plot.setRangeGridlinePaint(Color.white);

        CategoryAxis domainAxis = plot.getDomainAxis();
        domainAxis.setLowerMargin(0.0);
        domainAxis.setUpperMargin(0.0);

        // change the auto tick unit selection to integer units only...
        NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

        CategoryItemRenderer renderer = plot.getRenderer();
        renderer.setBaseItemLabelsVisible(true);
        AreaRenderer renderer2 = (AreaRenderer) plot.getRenderer();
        renderer2.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator());

        return chart;

    }

}