I am using the below cewolf tag for generating the StackedHorizondalBar3D chart in my Application.
Code in JSP,
<cewolf:chart id="stackedBarID" type="stackedHorizontalBar3D" showlegend="true" xaxislabel="Devices" yaxislabel="Traffic Value(MB)">
In PostProcessor class i used the below code to set the Font of the Legend,
Font legendFont = new Font("Arial", Font.PLAIN, 9);
StandardLegend standardlegend = (StandardLegend) ((JFreeChart) chart).getLegend();
if( standardlegend != null )
My Question here is, Can i set the Limit of the Legend for the Graph as "5/10" using the JFree chart API even though the data set contains more attributes.
ie., Graph should not be affected and my only requirement is first 5/10 legend is enough to be shown in the Graph.
Please post your valuable suggestion to me to solve my problem.
You should dig into jfreechart code for that.
One possible way: for each JFreeChart there is one renderer class is assigned as default. Create a subclass of the default renderer of your chart type, and override the legend generator method, which may look like:
public LegendItem getLegendItem(int datasetIndex, int series);
It should return null for the unwanted legends. All these magic can go the a postprocessor, and set the new renderer to your chart: jfreechart.getPlot().setRenderer(new myrenderer());
There might be other simpler ways too, I'd recommend to buy JFreeChart's demo/documentation; or search its forums; then the tricky code goes to postprocessors.
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