Jeff,

Perfect. 
I'll give that a try...

Thanks again,
P.R.

-----Original Message-----
From: Jeff Whitaker [mailto:jsw...@fastmail.fm] 
Sent: 2009-08-13 7:15 AM
To: Eric Firing
Cc: P.R.; matplotlib-users@lists.sourceforge.net
Subject: Re: [Matplotlib-users] contourf interpolation/smoothness

Eric Firing wrote:
> P.R. wrote:
>   
>> This has probably been asked before, so I apologize...
>>
>> Is it possible to improve the smoothness/interpolation used in contourf?
>> I know that the interpolation can be set for imshow(pcolor?), but I
couldn't
>> see how to set it for contourf.
>>
>> Right now, contourf is producing some relatively jagged output for my
>> dataset, and I'd like to try to smoothen it out, without resorting to
using
>> pcolor/imshow...
>>     
>
> There are two approaches:
>
> 1) manipulate the contours (the patch boundaries)
> 2) smooth and interpolate the data to a finer grid before contouring.
>
> There are many problems with the first approach, and we have never tried 
> to implement it.
>
> That leaves the second method, which is really not a plotting task but a 
> data processing task.  You might want to see if there is a suitable tool 
> in scipy.
>
> Eric
>
>
>   
Pablo:  You could use the interp function in Basemap to bilinearly 
interpolate to a finer grid.

http://matplotlib.sourceforge.net/basemap/doc/html/api/basemap_api.html#mpl_
toolkits.basemap.interp

-Jeff


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