Cylindrical bars in bar charts

[mkhan523]

hi,

My reports contain 3D bar charts....... Can  any one tell me how to make the bars cylindrical in shape????

[szaharia]

Hi,

For cylinder bars a cylinder renderer is needed. There is a CylinderRenderer class in the JFreeChart demo jar that can be used instead of the usual BarRenderer3D. You will need to add the demo jar to the app classpath. More on getting the demo jar you can find out on the JFreeChart site.
Next, use a chart customizer to get access to the JFreeChart object.
In the customize() method, replace the BarRenderer3D object in the category plot with a CylinderRenderer.
 
For further issues or howtos related on the CylinderRenderer class, the JFreeChart forum is the best place to ask questions.

Hope this helps,
sanda

Code:

public void customize(JFreeChart chart, JRChart jasperChart){  CylinderRenderer cylinderRenderer= new CylinderRenderer();  CategoryPlot categoryPlot = (CategoryPlot)chart.getPlot();  BarRenderer3D barRenderer3D = (BarRenderer3D)categoryPlot.getRenderer();  // set all needed renderer properties here; for instance:  // cylinderRenderer.setItemMargin(barRenderer3D.getItemMargin());  // etc  categoryPlot.setRenderer(cylinderRenderer);}