[jfreechart-dev] [ jfreechart-Bugs-2844172 ] circular property of pie chart not always observed

[SourceForge.net <no...@so...>]

Bugs item #2844172, was opened at 2009-08-25 12:16
Message generated for change (Comment added) made by r08
You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=115494&aid=2844172&group_id=15494

Please note that this message will contain a full copy of the comment thread,
including the initial issue submission, for this request,
not just the latest update.
Category: General
Group: 1.0.x
Status: Closed
Resolution: Wont Fix
Priority: 5
Private: No
Submitted By: Rob McKay (r08)
Assigned to: David Gilbert (mungady)
Summary: circular property of pie chart not always observed

Initial Comment:
setCircular(true) does not always work on a pie chart because sometimes the transform set on the graphics context passed in has different X and Y scales which cause an ellipse to be drawn.

----------------------------------------------------------------------

Comment By: Rob McKay (r08)
Date: 2009-09-01 09:22

Message:
There should be a way of setting the scaling to be uniform (same x and y
scales), and / or the documentation should be changed to point out this
side effect of scaling and how to overcome it.

----------------------------------------------------------------------

Comment By: David Gilbert (mungady)
Date: 2009-08-31 20:34

Message:
This scaling effect (by the ChartPanel) will distort shapes in the charts
(and fonts too) but you can turn it off as you discovered.  This isn't
strictly a bug.

The only side effect of increasing the maximumDrawHeight and Width in the
ChartPanel is that the offscreen buffer will have to be larger (and thus
consume more memory)...but it will avoid the distortion that you see.

----------------------------------------------------------------------

Comment By: Rob McKay (r08)
Date: 2009-08-25 13:55

Message:
A work around is to call chart.setMaximumDrawWidth() and
chart.setMaximumDrawHeight() with values bigger than the panel size like
Integer.MAX_VALUE but I'm not sure what the side effects of this are.

----------------------------------------------------------------------

You can respond by visiting: 
https://sourceforge.net/tracker/?func=detail&atid=115494&aid=2844172&group_id=15494