[visionegg] Re: uneven grating

matvey bossis wrote:

Hi
I am trying to generate a square wave color grating using
SinGrating2D. I have two problems:
1. The grating is uneven, for some reason. I get thicker and thinner stripes. 
2. The border between the circles is blurred. I think also the borders
between the stripes is not sharp enough. 
Dear Matvey,
(Next time, please try to send python code as attachments -- it's a pain trying to sort out the line-wraps.)
I think that increasing the num_samples parameter to your mask and gratings will solve both of your issues. 

-Andrew
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