Hi Andrew,

> This is interesting and shows some driver differences. The other problem
> with the overlapping approach is that it will mess up transparency for
> those drivers which use it. We've already seen the overlap problem with
> early versions of example 30.
> 
> Not sure there is any easy way around this without a more sophisticated,
> and possibly driver specific, way of filling in an arbitrary area.

Actually example 30 is always a mess. If you don't have a stroke around
your filled area, it doesn't look good since there is something missing
between the areas.

http://www.miscdebris.net/stuff/ex30_nostroke.pdf

If you have a stroke around, strokes will overlap and again it doesn't
look good

http://www.miscdebris.net/stuff/ex30_stroke.pdf

(both plots were created with pdfcairo).

Maybe as Alan suggested we can deal with this problem playing around
with the width of the stroke, but I'm not sure about that.
Non-transparent shade plots look good though.

Regards,
Werner

> 
> Andrew
> 
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-- 
Dr. Werner Smekal
Institut fuer Allgemeine Physik
Technische Universitaet Wien
Wiedner Hauptstr 8-10
A-1040 Wien
Austria

email: [EMAIL PROTECTED]
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