英文:
with jFreeChart StandardXYItemRenderer how do I set line and/or shape visibility
问题
package usexyseries;
import java.awt.Color;
import java.awt.BasicStroke;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.data.xy.XYSeriesCollection;
public class UseXYSeries extends ApplicationFrame {
public UseXYSeries( String applicationTitle, String chartTitle ) {
super(applicationTitle);
JFreeChart xylineChart = ChartFactory.createXYLineChart(
chartTitle ,
"Category" ,
"Score" ,
createDataset() ,
PlotOrientation.VERTICAL ,
true , true , false);
ChartPanel chartPanel = new ChartPanel( xylineChart );
chartPanel.setPreferredSize( new java.awt.Dimension( 560 , 367 ) );
final XYPlot plot = xylineChart.getXYPlot( );
StandardXYItemRenderer renderer = new StandardXYItemRenderer ( );
renderer.setSeriesPaint( 0 , Color.RED );
renderer.setSeriesPaint( 1 , Color.GREEN );
renderer.setSeriesPaint( 2 , Color.YELLOW );
renderer.setSeriesStroke( 0 , new BasicStroke( 4.0f ) );
renderer.setSeriesStroke( 1 , new BasicStroke( 3.0f ) );
renderer.setSeriesStroke( 2 , new BasicStroke( 2.0f ) );
plot.setRenderer( renderer );
setContentPane( chartPanel );
}
private XYDataset createDataset( ) {
final XYSeries firefox = new XYSeries( "Firefox", false );
firefox.add( 3.0 , 4.0 );
firefox.add( 5.0 , 3.0 );
firefox.add( 1.0 , 1.0 );
firefox.add( 1.0 , 3.0 );
final XYSeries chrome = new XYSeries( "Chrome" );
chrome.add( 1.0 , 4.0 );
chrome.add( 2.0 , 5.0 );
chrome.add( 3.0 , 6.0 );
final XYSeries iexplorer = new XYSeries( "InternetExplorer" );
iexplorer.add( 3.0 , 4.0 );
iexplorer.add( 4.0 , 5.0 );
iexplorer.add( 5.0 , 4.0 );
final XYSeriesCollection dataset = new XYSeriesCollection( );
dataset.addSeries( firefox );
dataset.addSeries( chrome );
dataset.addSeries( iexplorer );
return dataset;
}
public static void main( String[ ] args ) {
UseXYSeries chart = new UseXYSeries("Browser Usage Statistics",
"Which Browser are you using?");
chart.pack( );
RefineryUtilities.centerFrameOnScreen( chart );
chart.setVisible( true );
}
}
英文:
I'm using jFreeChart to create what I thought would be a simple plot. I had to switch from XYLineAndShapeRenderer
to StandardXYItemRenderer
to prevent the renderer from sorting the series data before plotting it. Now, I can't use setSeriesLinesVisible
or setSeriesShapesVisible
to control visibility within a series. Here is the code:
package usexyseries;
import java.awt.Color;
import java.awt.BasicStroke;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.data.xy.XYDataset;
import org.jfree.data.xy.XYSeries;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.chart.plot.XYPlot;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.xy.StandardXYItemRenderer;
import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer;
import org.jfree.data.xy.XYSeriesCollection;
public class UseXYSeries extends ApplicationFrame {
public UseXYSeries( String applicationTitle, String chartTitle ) {
super(applicationTitle);
JFreeChart xylineChart = ChartFactory.createXYLineChart(
chartTitle ,
"Category" ,
"Score" ,
createDataset() ,
PlotOrientation.VERTICAL ,
true , true , false);
ChartPanel chartPanel = new ChartPanel( xylineChart );
chartPanel.setPreferredSize( new java.awt.Dimension( 560 , 367 ) );
final XYPlot plot = xylineChart.getXYPlot( );
// this renderer sorted the series data
// XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer ( );
// this renderer can't set the visibility of lines and shapes (sigh!)
StandardXYItemRenderer renderer = new StandardXYItemRenderer ( );
renderer.setSeriesPaint( 0 , Color.RED );
renderer.setSeriesPaint( 1 , Color.GREEN );
renderer.setSeriesPaint( 2 , Color.YELLOW );
renderer.setSeriesStroke( 0 , new BasicStroke( 4.0f ) );
renderer.setSeriesStroke( 1 , new BasicStroke( 3.0f ) );
renderer.setSeriesStroke( 2 , new BasicStroke( 2.0f ) );
// renderer.setSeriesLinesVisible(0, true);
// renderer.setSeriesLinesVisible(1, true);
// renderer.setSeriesLinesVisible(2, false);
// renderer.setSeriesShapesVisible(0, false);
// renderer.setSeriesShapesVisible(1, false);
// renderer.setSeriesShapesVisible(2, false);
plot.setRenderer( renderer );
setContentPane( chartPanel );
}
private XYDataset createDataset( ) {
final XYSeries firefox = new XYSeries( "Firefox", false );
firefox.add( 3.0 , 4.0 );
firefox.add( 5.0 , 3.0 );
firefox.add( 1.0 , 1.0 );
firefox.add( 1.0 , 3.0 );
final XYSeries chrome = new XYSeries( "Chrome" );
chrome.add( 1.0 , 4.0 );
chrome.add( 2.0 , 5.0 );
chrome.add( 3.0 , 6.0 );
final XYSeries iexplorer = new XYSeries( "InternetExplorer" );
iexplorer.add( 3.0 , 4.0 );
iexplorer.add( 4.0 , 5.0 );
iexplorer.add( 5.0 , 4.0 );
final XYSeriesCollection dataset = new XYSeriesCollection( );
dataset.addSeries( firefox );
dataset.addSeries( chrome );
dataset.addSeries( iexplorer );
return dataset;
}
public static void main( String[ ] args ) {
UseXYSeries chart = new UseXYSeries("Browser Usage Statistics",
"Which Browser are you using?");
chart.pack( );
RefineryUtilities.centerFrameOnScreen( chart );
chart.setVisible( true );
}
}
答案1
得分: 1
你使用的是哪个 JFreeChart 版本?
在运行你的测试程序时,我没有看到使用 XYLineAndShapeRenderer
和 StandardXYItemRenderer
之间有任何区别。因此,你应该能够使用 XYLineAndShapeRenderer
以及 setSeriesLinesVisible
/setSeriesShapesVisible
。
英文:
Which JFreeChart version do you use?
I don't see any difference between using the XYLineAndShapeRenderer
and the StandardXYItemRenderer
running your test program. So you should be able to use XYLineAndShapeRenderer
and setSeriesLinesVisible
/setSeriesShapesVisible
.
答案2
得分: 1
Ah,你指导我朝着正确的方向。我没有意识到XYSeries的构造函数需要第二个参数,该参数可以启用(默认)或禁用对数据系列进行排序。谢谢。
英文:
Ah, you pointed me in the right direction. I didn't realize that the XYSeries constructor took a second parameter which enabled (default) or disabled sorting the data series.
Thanks.
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