Re: [matplotlib-devel] contour/contourf and masked arrays

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

John, Jeff,

> Eric:  Thanks - contour indeed now seems to work perfectly with masked 
> arrays, but I still have problems with contourf (see attached 
> ortho_test.png).  Unfortunately, neither of your suggested workarounds 
> help, the first makes no difference and the second makes it much worse.
> -Jeff

The attached patch against the cntr.c in cvs does the following:

1) Fixes the bug you (Jeff) described above.

2) Adds a print function for debugging, but normally unused.

3) Fixes a minor bug in which space for an array of ints was allocated 
where only an array of chars was used.

The original masked array contourf bug is still there, but I suspect 
(and hope!) it will not present a serious problem for basemap.  I still 
want to find and fix it, but that may take a long time.

I want to make some minor cleanups and one API change in contour.py, but 
I will leave that for a separate message, probably within 24 hours.

Eric