linechartdemo7.java

Jfreechart 源码例子 是和jfreechart development Guide文档相配套的

package demo;

import java.awt.Color;
import java.awt.Dimension;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.NumberAxis;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.LineAndShapeRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.ShapeUtilities;

public class LineChartDemo7 extends ApplicationFrame
{
  public LineChartDemo7(String paramString)
  {
    super(paramString);
    JPanel localJPanel = createDemoPanel();
    localJPanel.setPreferredSize(new Dimension(500, 270));
    setContentPane(localJPanel);
  }

  private static CategoryDataset createDataset()
  {
    DefaultCategoryDataset localDefaultCategoryDataset = new DefaultCategoryDataset();
    localDefaultCategoryDataset.addValue(21.0D, "Series 1", "Category 1");
    localDefaultCategoryDataset.addValue(50.0D, "Series 1", "Category 2");
    localDefaultCategoryDataset.addValue(152.0D, "Series 1", "Category 3");
    localDefaultCategoryDataset.addValue(184.0D, "Series 1", "Category 4");
    localDefaultCategoryDataset.addValue(299.0D, "Series 1", "Category 5");
    localDefaultCategoryDataset.addValue(275.0D, "Series 2", "Category 1");
    localDefaultCategoryDataset.addValue(121.0D, "Series 2", "Category 2");
    localDefaultCategoryDataset.addValue(98.0D, "Series 2", "Category 3");
    localDefaultCategoryDataset.addValue(103.0D, "Series 2", "Category 4");
    localDefaultCategoryDataset.addValue(210.0D, "Series 2", "Category 5");
    localDefaultCategoryDataset.addValue(198.0D, "Series 3", "Category 1");
    localDefaultCategoryDataset.addValue(165.0D, "Series 3", "Category 2");
    localDefaultCategoryDataset.addValue(55.0D, "Series 3", "Category 3");
    localDefaultCategoryDataset.addValue(34.0D, "Series 3", "Category 4");
    localDefaultCategoryDataset.addValue(77.0D, "Series 3", "Category 5");
    return localDefaultCategoryDataset;
  }

  private static JFreeChart createChart(CategoryDataset paramCategoryDataset)
  {
    JFreeChart localJFreeChart = ChartFactory.createLineChart("Line Chart Demo 7", "Category", "Count", paramCategoryDataset, PlotOrientation.VERTICAL, true, true, false);
    CategoryPlot localCategoryPlot = (CategoryPlot)localJFreeChart.getPlot();
    NumberAxis localNumberAxis = (NumberAxis)localCategoryPlot.getRangeAxis();
    localNumberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    LineAndShapeRenderer localLineAndShapeRenderer = (LineAndShapeRenderer)localCategoryPlot.getRenderer();
    localLineAndShapeRenderer.setSeriesShapesVisible(0, true);
    localLineAndShapeRenderer.setSeriesShapesVisible(1, false);
    localLineAndShapeRenderer.setSeriesShapesVisible(2, true);
    localLineAndShapeRenderer.setSeriesLinesVisible(2, false);
    localLineAndShapeRenderer.setSeriesShape(2, ShapeUtilities.createDiamond(4.0F));
    localLineAndShapeRenderer.setDrawOutlines(true);
    localLineAndShapeRenderer.setUseFillPaint(true);
    localLineAndShapeRenderer.setBaseFillPaint(Color.white);
    return localJFreeChart;
  }

  public static JPanel createDemoPanel()
  {
    JFreeChart localJFreeChart = createChart(createDataset());
    return new ChartPanel(localJFreeChart);
  }

  public static void main(String[] paramArrayOfString)
  {
    LineChartDemo7 localLineChartDemo7 = new LineChartDemo7("JFreeChart: LineChartDemo7.java");
    localLineChartDemo7.pack();
    RefineryUtilities.centerFrameOnScreen(localLineChartDemo7);
    localLineChartDemo7.setVisible(true);
  }
}