看到的一个例子,你研究一下吧:package test;
import java.awt.*;
import javax.swing.JPanel;
import org.jfree.chart.*;
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;public class LineChartDemo1 extends ApplicationFrame
{ public LineChartDemo1(String s)
{
super(s);
CategoryDataset categorydataset = createDataset();
JFreeChart jfreechart = createChart(categorydataset);
ChartPanel chartpanel = new ChartPanel(jfreechart);
chartpanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartpanel);
} private static CategoryDataset createDataset()
{
String s = "First";
String s1 = "Second";
String s2 = "Third";
String s3 = "Type 1";
String s4 = "Type 2";
String s5 = "Type 3";
String s6 = "Type 4";
String s7 = "Type 5";
String s8 = "Type 6";
String s9 = "Type 7";
String s10 = "Type 8";
DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();
defaultcategorydataset.addValue(1.0D, s, s3);
defaultcategorydataset.addValue(4D, s, s4);
defaultcategorydataset.addValue(3D, s, s5);
defaultcategorydataset.addValue(5D, s, s6);
defaultcategorydataset.addValue(5D, s, s7);
defaultcategorydataset.addValue(7D, s, s8);
defaultcategorydataset.addValue(7D, s, s9);
defaultcategorydataset.addValue(8D, s, s10);
defaultcategorydataset.addValue(5D, s1, s3);
defaultcategorydataset.addValue(7D, s1, s4);
defaultcategorydataset.addValue(6D, s1, s5);
defaultcategorydataset.addValue(8D, s1, s6);
defaultcategorydataset.addValue(4D, s1, s7);
defaultcategorydataset.addValue(4D, s1, s8);
defaultcategorydataset.addValue(2D, s1, s9);
defaultcategorydataset.addValue(1.0D, s1, s10);
defaultcategorydataset.addValue(4D, s2, s3);
defaultcategorydataset.addValue(3D, s2, s4);
defaultcategorydataset.addValue(2D, s2, s5);
defaultcategorydataset.addValue(3D, s2, s6);
defaultcategorydataset.addValue(6D, s2, s7);
defaultcategorydataset.addValue(3D, s2, s8);
defaultcategorydataset.addValue(4D, s2, s9);
defaultcategorydataset.addValue(3D, s2, s10);
return defaultcategorydataset;
} private static JFreeChart createChart(CategoryDataset categorydataset)
{
JFreeChart jfreechart = ChartFactory.createLineChart("Line Chart Demo 1", "Type", "Value", categorydataset, PlotOrientation.VERTICAL, true, true, false);
StandardLegend standardlegend = (StandardLegend)jfreechart.getLegend();
standardlegend.setDisplaySeriesShapes(true);
standardlegend.setShapeScaleX(1.5D);
standardlegend.setShapeScaleY(1.5D);
standardlegend.setDisplaySeriesLines(true);
jfreechart.setBackgroundPaint(Color.white);
CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
categoryplot.setBackgroundPaint(Color.lightGray);
categoryplot.setRangeGridlinePaint(Color.white);
NumberAxis numberaxis = (NumberAxis)categoryplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
numberaxis.setAutoRangeIncludesZero(true);
LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer)categoryplot.getRenderer();
lineandshaperenderer.setDrawShapes(true);
lineandshaperenderer.setSeriesStroke(0, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
10F, 6F
}, 0.0F));
lineandshaperenderer.setSeriesStroke(1, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
6F, 6F
}, 0.0F));
lineandshaperenderer.setSeriesStroke(2, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
2.0F, 6F
}, 0.0F));
return jfreechart;
} public static JPanel createDemoPanel()
{
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
} public static String getDemoDescription()
{
return "A line chart.";
} public static void main(String args[])
{
LineChartDemo1 linechartdemo1 = new LineChartDemo1("Line Chart Demo");
linechartdemo1.pack();
RefineryUtilities.centerFrameOnScreen(linechartdemo1);
linechartdemo1.setVisible(true);
}
}
import java.awt.*;
import javax.swing.JPanel;
import org.jfree.chart.*;
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;public class LineChartDemo1 extends ApplicationFrame
{ public LineChartDemo1(String s)
{
super(s);
CategoryDataset categorydataset = createDataset();
JFreeChart jfreechart = createChart(categorydataset);
ChartPanel chartpanel = new ChartPanel(jfreechart);
chartpanel.setPreferredSize(new Dimension(500, 270));
setContentPane(chartpanel);
} private static CategoryDataset createDataset()
{
String s = "First";
String s1 = "Second";
String s2 = "Third";
String s3 = "Type 1";
String s4 = "Type 2";
String s5 = "Type 3";
String s6 = "Type 4";
String s7 = "Type 5";
String s8 = "Type 6";
String s9 = "Type 7";
String s10 = "Type 8";
DefaultCategoryDataset defaultcategorydataset = new DefaultCategoryDataset();
defaultcategorydataset.addValue(1.0D, s, s3);
defaultcategorydataset.addValue(4D, s, s4);
defaultcategorydataset.addValue(3D, s, s5);
defaultcategorydataset.addValue(5D, s, s6);
defaultcategorydataset.addValue(5D, s, s7);
defaultcategorydataset.addValue(7D, s, s8);
defaultcategorydataset.addValue(7D, s, s9);
defaultcategorydataset.addValue(8D, s, s10);
defaultcategorydataset.addValue(5D, s1, s3);
defaultcategorydataset.addValue(7D, s1, s4);
defaultcategorydataset.addValue(6D, s1, s5);
defaultcategorydataset.addValue(8D, s1, s6);
defaultcategorydataset.addValue(4D, s1, s7);
defaultcategorydataset.addValue(4D, s1, s8);
defaultcategorydataset.addValue(2D, s1, s9);
defaultcategorydataset.addValue(1.0D, s1, s10);
defaultcategorydataset.addValue(4D, s2, s3);
defaultcategorydataset.addValue(3D, s2, s4);
defaultcategorydataset.addValue(2D, s2, s5);
defaultcategorydataset.addValue(3D, s2, s6);
defaultcategorydataset.addValue(6D, s2, s7);
defaultcategorydataset.addValue(3D, s2, s8);
defaultcategorydataset.addValue(4D, s2, s9);
defaultcategorydataset.addValue(3D, s2, s10);
return defaultcategorydataset;
} private static JFreeChart createChart(CategoryDataset categorydataset)
{
JFreeChart jfreechart = ChartFactory.createLineChart("Line Chart Demo 1", "Type", "Value", categorydataset, PlotOrientation.VERTICAL, true, true, false);
StandardLegend standardlegend = (StandardLegend)jfreechart.getLegend();
standardlegend.setDisplaySeriesShapes(true);
standardlegend.setShapeScaleX(1.5D);
standardlegend.setShapeScaleY(1.5D);
standardlegend.setDisplaySeriesLines(true);
jfreechart.setBackgroundPaint(Color.white);
CategoryPlot categoryplot = (CategoryPlot)jfreechart.getPlot();
categoryplot.setBackgroundPaint(Color.lightGray);
categoryplot.setRangeGridlinePaint(Color.white);
NumberAxis numberaxis = (NumberAxis)categoryplot.getRangeAxis();
numberaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
numberaxis.setAutoRangeIncludesZero(true);
LineAndShapeRenderer lineandshaperenderer = (LineAndShapeRenderer)categoryplot.getRenderer();
lineandshaperenderer.setDrawShapes(true);
lineandshaperenderer.setSeriesStroke(0, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
10F, 6F
}, 0.0F));
lineandshaperenderer.setSeriesStroke(1, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
6F, 6F
}, 0.0F));
lineandshaperenderer.setSeriesStroke(2, new BasicStroke(2.0F, 1, 1, 1.0F, new float[] {
2.0F, 6F
}, 0.0F));
return jfreechart;
} public static JPanel createDemoPanel()
{
JFreeChart jfreechart = createChart(createDataset());
return new ChartPanel(jfreechart);
} public static String getDemoDescription()
{
return "A line chart.";
} public static void main(String args[])
{
LineChartDemo1 linechartdemo1 = new LineChartDemo1("Line Chart Demo");
linechartdemo1.pack();
RefineryUtilities.centerFrameOnScreen(linechartdemo1);
linechartdemo1.setVisible(true);
}
}
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domainaxis.setTickUnit(new NumberTickUnit(7D)); //显示:0,7,14,21,...
NumberAxis numberaxis = (NumberAxis)xyplot.getRangeAxis();
numberaxis.setTickUnit(new NumberTickUnit(11D)); //显示:0,11,22,33,...