Dear developers,
in matplotlib 0.98.3 I discoverd that in scatter individual alpha
settings (by giving a list of rgba values) are ignered. Here an example
that show this behaviour: All points show the same alpha value as given
by the alpha keyword argument. (Omitting it equals to the setting alpha=1).
from pylab import *
x = [1,2,3]
y = [1,2,3]
c = [[1,0,0, 0.0],
[1,0,0, 0.5],
[1,0,0, 1.0]]
gca()
cla()
scatter(x,y, c=c, s = 200, alpha = 0.5)
draw()
show()
I had a look at the sources. In axes.py/scatter I simply removed the line
collection.set_alpha(alpha)
The recent svn version also contains this line.
With this change it worked as expected, also e.g. for the case of a
single color for all points,
scatter(x,y, c = 'r', alpha = 0.5)
Gregor
-------------------------------------------------------------------------
This SF.Net email is sponsored by the Moblin Your Move Developer's challenge
Build the coolest Linux based applications with Moblin SDK & win great prizes
Grand prize is a trip for two to an Open Source event anywhere in the world
http://moblin-contest.org/redirect.php?banner_id=100&url=/
_______________________________________________
Matplotlib-devel mailing list
Matplotlib-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/matplotlib-devel
