Open Flash Chart

[cowwoc]

Hi,

Would it be possible to import some of the functionality from "Open Flash Chart" into JFreeChart? Their charts are a lot more polished out-of-the-box. It would be nice if JFreeChart did the same.

Thanks,
Gili

[david.gilbert]

Can you be more specific about what you are looking for? I agree that JFreeChart needs some polishing in certain areas (including improvement of the defaults to provide a better look "out-of-the-box"), but I'm interested to hear what other people consider to be the deficiencies. I need specifics, though.

[cowwoc]

Can you be more specific about what you are looking for? I agree that JFreeChart needs some polishing in certain areas (including improvement of the defaults to provide a better look "out-of-the-box"), but I'm interested to hear what other people consider to be the deficiencies. I need specifics, though.

Hi David,

When comparing their online demo to JFreeChart's I like their choice of colors better and of course their animation on mouse-over is very nice. So I guess one comment would be to improve the demo in that respect. The other comment would be to make sure it is easy to produce such polish with a minimal amount of code. I can't comment on how easy/hard this is to do currently because I haven't used JFreeChart in a while.

Thank you,
Gili

[MarkChance]

I am also coming from an OFC-type environment (Flex/Flash). It seems the rollovers would be do-able with a mouse listener. I think another option would be to cheat slightly and only look at the X value and highlight all Y values.
(A good place to see this in action is: http teethgrinder DOT co DOT uk SLASH open-flash-chart SLASH gallery-js-2.php). [Sorry - it won't let "new" users put URLs in the message]

What would be the best implementation strategy? MouseListener, Tooltip tweaking? Any hints would be appreciated.

Mark

[RichardWest]

The main issue with all these flashy (excuse the pun) features is that JFreeChart redraws the complete chart on changes. Trying to create a rollover highlight for bars, lines, points, etc. would require deconstructing the plots into component pieces and selectively update and redraw individual components. This would require a major change to the way JFreeChart draws and manages plots.