Based on my previous post I now need to draw two datasets each with stacked bar charts and dual axis. I tried to modify the code for DualAxisDemo6 (see below). My problems with this is that I would like the charts to display side by side with a space in between and same width for each category, in this case the second graph displays too wide.
Please advise
Code: Select all
import javax.swing.JPanel;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.LegendItemCollection;
import org.jfree.chart.axis.AxisLocation;
import org.jfree.chart.axis.CategoryAxis;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.axis.ValueAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.chart.renderer.category.GroupedStackedBarRenderer;
import org.jfree.chart.renderer.category.StackedBarRenderer;
import org.jfree.data.KeyToGroupMap;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* This demo shows how to create a dual axis bar chart that combines a stacked
* bar chart and a regular bar chart. A workaround is used to prevent the
* two renderers from overlapping the bars for the two datasets - see
* DualAxisDemo5.java for a simpler case.
*/
public class DualAxisStackedDemo extends ApplicationFrame {
/**
* Creates a new demo instance.
*
* @param title the frame title.
*/
public DualAxisStackedDemo(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return The dataset.
*/
private static CategoryDataset createDataset1() {
// row keys...
String series1 = "Series 1A";
String series2 = "Series 1B";
// column keys...
String category1 = "Category 1";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
// create the dataset...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
//dataset.addValue(1.0, series1, category1);
dataset.addValue(4.0, series1, category2);
//dataset.addValue(3.0, series1, category3);
dataset.addValue(5.0, series1, category4);
dataset.addValue(3.0, series2, category1);
dataset.addValue(6.0, series2, category2);
dataset.addValue(1.0, series2, category3);
dataset.addValue(5.0, series2, category4);
return dataset;
}
/**
* Creates a sample dataset.
*
* @return The dataset.
*/
private static CategoryDataset createDataset2() {
// row keys...
String series1 = "Series 2A";
String series2 = "Series 2B";
// column keys...
String category1 = "Category 1";
String category2 = "Category 2";
String category3 = "Category 3";
String category4 = "Category 4";
// create the dataset...
DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(20.0, series1, category1);
dataset.addValue(30.0, series1, category2);
dataset.addValue(40.0, series1, category3);
dataset.addValue(30.0, series1, category4);
dataset.addValue(75.0, series2, category1);
dataset.addValue(87.0, series2, category2);
dataset.addValue(96.0, series2, category3);
dataset.addValue(68.0, series2, category4);
return dataset;
}
/**
* Creates a chart.
*
* @param dataset1 the first dataset.
* @param dataset2 the second dataset.
*
* @return A chart.
*/
private static JFreeChart createChart(CategoryDataset dataset1,
CategoryDataset dataset2) {
CategoryAxis domainAxis = new CategoryAxis("Category");
NumberAxis rangeAxis = new NumberAxis("Value");
GroupedStackedBarRenderer renderer1 = new GroupedStackedBarRenderer();
KeyToGroupMap map = new KeyToGroupMap("G1");
map.mapKeyToGroup("Series 1A", "G1");
map.mapKeyToGroup("Series 1B", "G1");
// define a second group, but nothing maps to it
map.mapKeyToGroup("NOTHING", "G2");
renderer1.setSeriesToGroupMap(map);
CategoryPlot plot = new CategoryPlot(dataset1, domainAxis, rangeAxis,
renderer1) {
/**
* Override the getLegendItems() method to handle special case.
*
* @return the legend items.
*/
public LegendItemCollection getLegendItems() {
LegendItemCollection result = new LegendItemCollection();
// we can use all the series from renderer 1
result.addAll(getRenderer().getLegendItems());
CategoryDataset dset2 = getDataset(1);
if (dset2 != null) {
CategoryItemRenderer renderer2 = getRenderer(1);
if (renderer2 != null) {
result.addAll(renderer2.getLegendItems());
}
}
return result;
}
};
JFreeChart chart = new JFreeChart("Dual Axis Stacked Bar Chart", plot);
plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_RIGHT);
plot.setDataset(1, dataset2);
plot.mapDatasetToRangeAxis(1, 1);
ValueAxis axis2 = new NumberAxis("Secondary");
plot.setRangeAxis(1, axis2);
plot.setRangeAxisLocation(1, AxisLocation.BOTTOM_OR_RIGHT);
StackedBarRenderer renderer2 = new StackedBarRenderer();
plot.setRenderer(1, renderer2);
// ChartUtilities.applyCurrentTheme(chart);
return chart;
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset1(), createDataset2());
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
DualAxisStackedDemo demo = new DualAxisStackedDemo(
"JFreeChart: DualAxisDemo6.java");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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