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public class Saulendiagramm {
private ChartPanel chartPanel;
private CategoryDataset dataset;
private JFreeChart chart;
private CategoryPlot plot;
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public Diagramm() {
dataset = createDataset();
chart = createChart(dataset);
chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
}
public Diagramm(Dataset dataset) {
this.dataset = ((CategoryDataset)dataset);
}
/**
* Creates a sample dataset.
*
* @return a sample dataset.
*/
private CategoryDataset createDataset() {
final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
dataset.addValue(25.0, "Series 1", "Category 1");
dataset.addValue(12.0, "Series 2", "Category 2");
dataset.addValue(14.0, "Series 3", "Category 3");
dataset.addValue(18.0, "Series 4", "Category 4");
dataset.addValue(27.0, "Series 5", "Category 5");
dataset.addValue(25.0, "Series 6", "Category 6");
dataset.addValue(24.0, "Series 7", "Category 7");
return dataset;
}
/**
* Creates a chart.
*
* @param dataset the dataset.
*
* @return The chart.
*/
private JFreeChart createChart(final CategoryDataset dataset) {
final JFreeChart chart = ChartFactory.createBarChart3D(
"3D Bar Chart Demo", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true, // tooltips
false // urls
);
plot = chart.getCategoryPlot();
final CategoryAxis axis = plot.getDomainAxis();
axis.setCategoryLabelPositions(
CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 8.0)
);
final CategoryItemRenderer renderer = plot.getRenderer();
final BarRenderer r = (BarRenderer) renderer;
r.setMaximumBarWidth(0.05);
return chart;
}
public void changeDataSet(DefaultCategoryDataset dataset) {
plot.setDataset(dataset);
}
public ChartPanel getChartPanel() {
return chartPanel;
}
public JFreeChart getJFreeChart() {
return chart ;
}
public void setTitle(String title) {
chart.setTitle(title);
}
} |
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