Re: [matplotlib-devel] Unavoidable gridlines in pcolor pdf output

[Eric F. <ef...@ha...>]

On 04/09/2012 09:25 AM, Michael Gilbert wrote:
> On Mon, Apr 9, 2012 at 1:43 PM, Eric Firing<ef...@ha...>  wrote:
>>> Making the polygons overlap by one pdf unit (1/72 of an inch) seems to
>>> make the lines go away at least in Preview. Making them overlap by 0.1
>>> units does not help.
>>
>> Does it make them go away with alpha = 0.5, say?
>
> Setting alpha 0.5 didn't help.  It made the contours more transparent
> as expected, but the unwanted lines remain yet with the same amount of
> transparency.

Sorry, my point was that even if the 1/72 overlap "works" with some 
viewers with alpha = 1, I would expect it to cause trouble with non-unit 
alpha, with some if not with all viewers. I don't think there is any 
hack that works in general, and a 1/72 overlap sounds to me like a hack.

Eric

>
> Best wishes,
> Mike
>
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