Re: [Matplotlib-users] blank spaces in the map of contourf(X, Y, Z, V)

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

Qing Zhang wrote:
> Hi,
> 
> When I plot a contourf(X, Y, Z, V) map with a list of specified values V 
> for the contour lines, the map will have blank spaces where  Z are not 
> in the range specified by V. Is it possible to fill the blank spaces 
> with the two colors for the largest and the smallest V values?
> 
> Thanks,
> 
> Qing
> 

Qing,

Yes. One easy way to do this is is to put very large negative and 
positive values at the ends of your V array, for example

V = [-100, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 100]

It doesn't matter how large these outside values are, so long as they 
encompass all your data.  With the default contourf kwarg 
clip_ends=True, the color scaling will not use them.

Eric