Reporting this as a matplotlib bug because that's where I see the error.
I have some code which was running fine, drawing a scatter plot with
transparent/alpha for the colour, like this...
ax1.scatter(sanjose_y,sanjose_x,color=(0.9,0.9,0.0,0.1),label='SanJose')
This used to draw a very faint transparent series of points which (where there
were a lot of points) built up a fairly solid colour. Now, after an upgrade to
Ubuntu 9.10 I see only solid colour, no transparency/alpha at all. Also (a
different problem), I get an error message (when adding a legend, that no
labels were defined). This is also changed behaviour since the upgrade. Seems
like scatter has changed... but why?
I tried downloading matplotlib source code and compiling -- and despite a few
glitches (like, it was by default Mac compilation) -- I think I got that going
OK. Still, I see exactly the same behaviour. Scatter is behaving differently,
and I really need that alpha/transparency!!!
Neither of these problems were evident on Ubuntu 9.04, and I was using the
inbuilt matplotlib for that.
Please excuse if this report is in the wrong place -- my first attempt to
report a bug in this package.
Cheers
A
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Andrew 'Boo' Davie
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