Yeates, Mathew C (388D) wrote:
> Hi
> 
> I would expect
> 
> hgt=ma.masked_where(div == 0,hgt)
> 
> m.contourf(x,y,hgt,15,cmap=plt.cm.jet)
> 
>  
> 
> to produce a map complementary to the map produced by
> 
>  
> 
> hgt=ma.masked_where(div != 0,hgt)
> 
> m.contourf(x,y,hgt,15,cmap=plt.cm.jet)
> 
>  
> 
> But, this is not the case.
> 
> What am I missing?

Basemap contourf calls mpl contourf, and mpl contourf leaves a grid box 
empty if any of its corners is masked.  Does this account for what you 
are seeing?

Eric

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