| Category: | Bug report |
Priority: | Normal |
Status: | New |
| Project: | Severity: | Minor |
Resolution: | Open |
|
| Component: | Reproducibility: | Always |
Assigned to: |
I'm calling this a bug as the software doesn't match the documentation, though it could really be a feature request.
This document http://jasperforge.org/uploads/publish/jasperreportswebsite/trunk/sample... indicates that an <xyzDataset> can have a <labelExpression> sub-element, but the schema (http://jasperreports.sourceforge.net/xsd/jasperreport.xsd) says otherwise.
This prevents labelling of data elements in the bubble chart type.
Could <labelExpression> be allowed in <xyzDataset> elements in the schema in order to label these items?
1 Comment:
For anyone reading this that just wants to label their bubble charts, I was able to do it using a customizer.
For my label, I wanted to use the same as the series label. Simple enough:
import net.sf.jasperreports.engine.JRAbstractChartCustomizer;
import net.sf.jasperreports.engine.JRChart;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.BubbleXYItemLabelGenerator;
import org.jfree.data.xy.XYDataset;
public class BubbleChartLabelCustomizer
extends JRAbstractChartCustomizer
{
public void customize(JFreeChart chart, JRChart jasperChart)
{
chart.getXYPlot().getRenderer().setBaseItemLabelGenerator(new LabelGenerator());
chart.getXYPlot().getRenderer().setBaseItemLabelsVisible(true);
}
class LabelGenerator
extends BubbleXYItemLabelGenerator
{
public String generateLabel(XYDataset dataset, int series, int item)
{
return String.valueOf(dataset.getSeriesKey(series));
}
}
}