www.jfree.org

Thanks to you both. I will have a look at both solutions and see which is the most appropriate for my case but both look like they will do the job.

Hi. I am attempting to produce a pie chart with support for negative values (I know this doesn't make sense but there we go..). The pie itself does not need to have a segment for the series with a negative value though it does need a legend item. I have tried two different methods of getting this to...

Hi. I am using the StackedXYAreaRenderer2 with the round flag set as true. I am however still getting thin white vertical lines in PNG output of the chart. I am using a DateAxis for the domain axis and a NumberAxis for the range axis. Does anyone know why I might still be getting these vertical line...

Hi Martin. Here is a picture. You see the really really thin wedge at the 12 o'clock position? The white borders overlap more and more the closer they get to the center. I think the problem would be alleviated slightly by having these outlines get thinner as they get to the center of the pie. Hope t...

Hi. We currently have a problem of pie section outlines overlapping for particularly narrow slices. The overlapping tends to become worse the closer to the center of the pie as the edges converge. One possible way I thought of lessening this effect is having the outlines taper as they get closer to ...

Thanks for your help Martin. I was able to override the drawItem method to retrieve coordinates of the largest bar. I also used a FontMetrics object to calculate the size of the block of text in the label and was able to compare these two Rectangle objects for intersection and if this was the case, ...

Still looking at this and I think the best solution is to do a n-pass routine whereby we draw the chart, then measure the dimensions of the label and things it might overlap with and if they do, adjust the upper margin, re-draw and check again until we find that we have no more overlapping. One ques...

Could you expand a little on what you mean? You could quite easily change the values specified in the 'createDataset' method. Do you mean changing the values after the chart has been created?

Hello. I am trying to figure out how I can prevent a Marker label from overlapping the bars (and their labels) on a bar chart. The problem occurs when the label text is long and split onto several lines until eventually it ends up overlapping with a bar. I have a couple of questions : Am I overlooki...

Hello. I was wondering if JFreeChart (specifically 1.0.12) offers a way to easily group together a number of adjacent segments on a pie chart, such that they have their own legend and the label on the chart refers to the group (not the individual segments)? I am currently trying to do this and I fig...

Hello! I have a TimeSeriesChart with a DateAxis as the domain axis. I am trying to get the axis to display tick labels for constant intervals of time. The input data (as an XYDataset) consists of numbers for each month for 5 years. Ie: 01/01/2001 5 01/02/2001 8 01/03/2001 21 ...... 01/01/2002 6 01/0...