Have you tried: ax1.scatter(sanjose_y,sanjose_x,color=(0.9,0.9,0.0),label='SanJose',alpha=0.1)
That's what the scatter_demo2.py example does, and it appears to be working. In general, alpha support is a bit inconsistent, and is the source of a number of these kinds of bugs -- where RGBA values are supported in some places but not in others. It's on the TODO list to fix, but it's rather pervasive so hasn't been tackled yet. Mike boo.da...@csiro.au wrote: > 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 > > -- > Andrew 'Boo' Davie > > ------------------------------------------------------------------------------ > Come build with us! The BlackBerry(R) Developer Conference in SF, CA > is the only developer event you need to attend this year. Jumpstart your > developing skills, take BlackBerry mobile applications to market and stay > ahead of the curve. Join us from November 9 - 12, 2009. Register now! > http://p.sf.net/sfu/devconference > _______________________________________________ > Matplotlib-devel mailing list > Matplotlib-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/matplotlib-devel > -- Michael Droettboom Science Software Branch Operations and Engineering Division Space Telescope Science Institute Operated by AURA for NASA ------------------------------------------------------------------------------ Come build with us! The BlackBerry(R) Developer Conference in SF, CA is the only developer event you need to attend this year. Jumpstart your developing skills, take BlackBerry mobile applications to market and stay ahead of the curve. Join us from November 9 - 12, 2009. Register now! http://p.sf.net/sfu/devconference _______________________________________________ Matplotlib-devel mailing list Matplotlib-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
