Re: [Matplotlib-users] matplotlib - representation of nan values in 2D

[Dirk Z. <dir...@go...>]

Dear  all,
thanks for your help. this is what I was looking for!
Dirk


2007/9/26, Eric Firing <ef...@ha...>:
>
> David Huard wrote:
> > Hi Dirk,
> >
> > If you haven't already done so, look at the numpy.ma <http://numpy.ma/>
> > module. It provides a masked array object that deals gracefully with
> > missing values. To the best of my knowledge, most matplotlib functions
> > understand masked arrays and deal with it accordingly, exception made of
> > those requiring a full matrix (such as contour). Take a look at
>
> contour handles masked arrays correctly, as far as I know; contourf has
> some bugs in its masked array handling, but depending on the type and
> distribution of voids, it may still be good enough.
>
> pcolor and image have no problems with masked arrays.
>
> Eric
>
> > examples/image_masked.py. Also, in the Basemap toolkit, there is at
> > least one example showing how to plot a masked array on a map.
> >
> > Cheers,
> >
> > David
>
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