Re: [Matplotlib-users] Contouring a large set of ungridded data

[Jeff W. <js...@fa...>]

Jesper Larsen wrote:

>Hi matplotlib users,
>
>I have a long list of ungridded data that I would like to make a contour plot 
>of. The data is simply a list of (longitude, latitude, datavalue) with the 
>data value belonging the given longitude and latitude. As far as I understand 
>contour() only accepts gridded data values.
>
>The solution is probably to interpolate the unstructured data to a regular 
>grid and then plot the data. Has anyone tried doing that or know where to 
>look for an interpolation/triangulation routine?
>
>Cheers,
>Jesper
>
>
>  
>

Jesper:  I've had good luck with the natgrid package in CDAT 
(http://cdat.sf.net).  It will grid unstructured data for you.  You can 
install it without installing the rest of CDAT, just go to the 
contrib/natgrid directory and run setup.py install.

-Jeff


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