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This renderer uses a single color in order to maximise performance - once you start changing the color for each data item, you'll have to bear the cost of that state change.

You need to ensure that the jfreesvg.jar file is on the class path. As long as that is the case, JFreeChart should automatically detect it and provide the option to export charts to SVG format.

For the PDF and SVG export options, there is some code in ChartPanel that is auto-detecting if OrsonPDF and JFreeSVG are on the class path, and adding the menu items only if they are there. It looks like the PolarChartPanel class skips this code entirely, so there is some work to do to add these. I'...

The coordinates that you pass to the XYLineAnnotation constructor need to be specified in data space (that is, values relative to the chart's axes) not in screen space.

I would guess that this is a bug in the PDF viewer application, not something related to JFreeChart.

Interesting, I will take a closer look at this.

Can you post a demo that is self contained? That is, one that I can copy and paste, compile and run. Then I will have a better chance to debug the issue. Also, which version of JFreeChart do you see this issue with?

Each chart repaint will redraw everything, so it isn't the most efficient. There aren't any optimisations available to make it faster, unfortunately. There was a project that was optimising for realtime updates: https://sourceforge.net/projects/jrobin/ I don't think it is maintained anymore (I might...

Yes, XYBlockRenderer would do the job. In the demos you can try XYBlockChartDemo1.java and also CrossSectionDemo1.java.

If you are using XYLineAndShapeRenderer, the shape displayed for any particular data item is returned by the method: public Shape getItemShape(int row, int column) The default implementation for this just returns one shape per data series, but if you override it you can return a different shape for ...

Maybe try the reflection hack posted here:

https://stackoverflow.com/questions/268 ... tips-delay

A new version of JFreeChart-FX (1.0.1) has been released. This project contains a set of extensions to allow JFreeChart to be used in JavaFX client applications:

https://github.com/jfree/jfreechart-fx

It was renamed LegendTitle because, if I recall correctly, the legend code was integrated into the title/subtitle mechanism for layout purposes.

The setPosition() method is still there, it is just that the class used for the argument (RectangleEdge) has moved to a new package *within* JFreeChart (so the JCommon dependency could be dropped). So make sure you are not importing the old RectangleEdge class from JCommon.

Will the new release on the 1.0 branch be functionally equivalent to 1.5? You mentioned that 2D charts display more cleanly in 1.5. Is this something that would be added to the 1.0 branch. I'm leaning towards moving on to 1.5, but want to understand what the next release on the 1.0 branch will incl...