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Some feedback/ideas based on scenarios I've come across in my own usage: 1. To be able to specify a url for an image (possibly a setImageUrl(String url) method in SVGGraphics2D). It would be the responsibility of the caller to set the image source prior to calling drawImage() and clear afterwards. 2...

Firstly may I say the library is absolutely amazing.

Only problem I've noticed so far is that &, < and > should be encoded in strings as they're illegal in XML.

Thanks again.

You are a programmer right? The JFree source code is one large sample. Take XYLineAndShapeRenderer as your base, learn how it works, figure out which methods need to be modified and then do it.

Write your own renderer (or extend XYLineAndShapeRenderer) to do what you want. There is no built in way to ignore zero.

Do not add the point to the dataset if the values are zero?

Best I can tell you're referencing a static XYPlot called plot but it is never assigned to. This is throwing the null pointer exception when you try and add the annotation.

I don't think that capability is built in. I suggest creating a custom LineAndShapeRenderer. In the drawItem() method you would need to keep searching back until you found a non-null value (or reached the start) and use that column index for the start point. Currently it draws no line if the previou...

Not sure why clone is not working (which version are you using?) Instead of cloning just create a new one. XYLineAndShapeRenderer renderer0 = (XYLineAndShapeRenderer)plot.getRenderer(); XYLineAndShapeRenderer renderer1 = new XYLineAndShapeRenderer(); renderer0.setSeriesPaint(0, Color.BLUE); renderer...

If you read my message you'll note I was talking about XYPlot. The naming is slightly different in CategoryPlot because there is only one of them. This may not be the problem either, but it is very similar to an issue we had with XYPlot.

Check the zero range baseline. I had a similar issue with XYPlot and it turned out to be the range zero baseline.

See these methods in ChartPanel which can be customised on a per panel basis. They work by setting the appropriate properties in ToolTipManager on mouse entry and reset the original values on mouse exit. public void setInitialDelay(int delay) public void setReshowDelay(int delay) public void setDism...

CategoryTextAnnotation is probably a good example of the kind of thing you need to implement. But it's just a guide, you'll probably need to implement something from scratch.

Use two renderers, not one. In each renderer it is the series 0 colour that you need to set. Something like this should work (untested) XYLineAndShapeRenderer renderer0 = (XYLineAndShapeRenderer)plot.getRenderer(); XYLineAndShapeRenderer renderer1 = (XYLineAndShapeRenderer)renderer0.clone(); rendere...

Do you mean rotated data labels? ItemLabelPosition (http://www.jfree.org/jfreechart/api/jav ... ition.html) allows you to specify an angle.

Create a LegendPanel that extends JPanel. LegendPanel will require a LegendTitle and in the paintComponent() method it will call the draw method of LegendTitle. The LegendItemSource for your LegendTitle will be the plot, unless you want to customise it. Note, I was not asking for the code to your ap...