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try this

PiePlot plot = (PiePlot) chart.getPlot();
plot.setCircular(true);

try this

ValueAxis rangeAxis = ((CategoryPlot) plot).getRangeAxis();
CategoryAxis domainAxis = ((CategoryPlot) plot).getDomainAxis();
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);

Try this method
saveChartAsJPEG(java.io.File file, float quality, JFreeChart chart, int width, int height) ;

example :
ChartUtilities.saveChartAsJPEG(new File(filelocation), 1.0f, chart, 600, 450);

can u please send me some sample code

Thanx for the reply....

But my X values are Strings not double...What to do know?

please help me

How to start the line graph margin value with user defined value instead of 0(zero by default)at the intersection of X and Y axis

I think u did not get the question 30 | | 20 | | 10 | | 0 |__________________________________ time1 time2 time3 time4 time5 I want the figure to be like this as below.....time1 should be the first point in Yaxis(in place of zero)..... 30 | | 20 | | 10 | | 0 |__________________________________ time1 ...

is any one there to help me??

is the question clear?????

i have a line chart with X axis as String values and Y axis as double values,intersection of both AXES is 0(by default). How can i start the intersection point starting from my String value instead of 0.

Its urgent....
Any help is greatly appreciated....

i got the solution.......thanx david


final ValueAxis rangeAxis = ((CategoryPlot) plot).getRangeAxis();
CategoryAxis domainAxis = ((CategoryPlot) plot).getDomainAxis();
domainAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_90);

thanx for quick reply.....but i am nowhere using CategoryAxis..... here is my code............ import java.awt.BasicStroke; import java.awt.Color; import java.awt.Dimension; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.ch...

is there any one to help me

I have generated a line graph and a scatter plot......i want to display the X axis labels vertically(horizontal by default) as the lables to be displayed are lengthy.....can some one tell me how to do this