Customization of PieChart in CeWolf and JFreeChart

Question

Hi all,
I am working on the web based charting application.
I am new to this cewolf and jfreechart api.
I have created some Pie Charts based on the data fetched from the database.
It works fine but the problem is that i want to customize the colors in the different pie slices of the PieChart.
I have searched alot on the net and found that I have to implement the interface ChartPostProcessor and provide a method processChart(). But I don't get any examples regarding that. Please give the piece of code that sets the different color on the pie chart.
Any suggestion would be appriciated greatly.
Thanks in advance.

Answer 1

you will need to create a class that implements the ChartPostProcessor, and do something like the following.
public class GraphPropertiesProcessor implements ChartPostProcessor{
     public void processChart(Object chart, Map params) {
          JFreeChart jChart = (JFreeChart)chart;
          PiePlot plot = (PiePlot) jChart.getPlot();
          plot.setSectionPaint(0,java.awt.color.red);
plot.setSectionPaint(0,java.awt.color.green);
     }