?? logarithmicaxisdemo1.java
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/* -------------------------
* LogarithmicAxisDemo1.java
* -------------------------
* (C) Copyright 2005, by Object Refinery Limited.
*
*
*/
package demo;
import javax.swing.JPanel;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.axis.LogarithmicAxis;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.plot.XYPlot;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.data.xy.XYSeriesCollection;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demo showing the use of the {@link LogarithmicAxis} class.
*/
public class LogarithmicAxisDemo1 extends ApplicationFrame {
/**
* Creates a new instance of the demo.
*
* @param title the frame title.
*/
public LogarithmicAxisDemo1(String title) {
super(title);
JPanel chartPanel = createDemoPanel();
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
private static JFreeChart createChart(XYDataset dataset) {
JFreeChart chart = ChartFactory.createScatterPlot(
"Logarithmic Axis Demo 1",
"X",
"Y",
dataset,
PlotOrientation.VERTICAL,
true,
true,
false
);
XYPlot plot = (XYPlot) chart.getPlot();
LogarithmicAxis xAxis = new LogarithmicAxis("X");
LogarithmicAxis yAxis = new LogarithmicAxis("Y");
plot.setDomainAxis(xAxis);
plot.setRangeAxis(yAxis);
return chart;
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private static XYDataset createDataset() {
XYSeries series = new XYSeries("Random Data");
series.add(1.0, 500.2);
series.add(5.0, 694.1);
series.add(4.0, 100.0);
series.add(12.5, 734.4);
series.add(17.3, 453.2);
series.add(21.2, 500.2);
series.add(21.9, 9005.5);
series.add(25.6, 734.4);
series.add(3000.0, 453.2);
return new XYSeriesCollection(series);
}
/**
* Creates a panel for the demo (used by SuperDemo.java).
*
* @return A panel.
*/
public static JPanel createDemoPanel() {
JFreeChart chart = createChart(createDataset());
return new ChartPanel(chart);
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(String[] args) {
LogarithmicAxisDemo1 demo = new LogarithmicAxisDemo1(
"Logarithmic Axis Demo 1"
);
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
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