Re: [Matplotlib-users] Two circles with “exponential decay” coloring, and alpha < 1, having trouble with color mixing?

[Sterling S. <sm...@fu...>]

Maybe the issue is with the colormap not having an alpha?  Does this
http://stackoverflow.com/questions/10127284/overlay-imshow-plots-in-matplotlib
help?

Otherwise, you might file a bug at 
https://github.com/matplotlib/matplotlib/issues/new

-Sterling

On Nov 20, 2015, at 4:46PM, Brian Merchant <bhm...@gm...> wrote:

> Hi all, 
> 
> In order to get circles such that their coloring is radially symmetric, with center being the darkest, and exponential decay in color as one moves farther away from the center along the radius, I used imshow with clip_path using Circle patches. 
> 
> Here's a toy script that overlaps two such circles: https://gist.github.com/bmer/7063cc2dd09f1b80a252
> 
> As you can see if you run the script (or, if you follow this link: http://i.imgur.com/H9jEAZ3.png), even though the alpha is set at 0.5, there doesn't seem to be proper "color mixing" occurring (we should see a result that is symmetric along the x-axis). 
> 
> Why is that, and what could I do to fix this issue? 
> 
> Kind regards, 
> Brian
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