Re: [Matplotlib-users] Axes other than pixels with imshow

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

G Jones wrote:
> Hello,
> Is it possible to label the axes of an imshow plot with something other 
> than pixel number? I want to use imshow for speed, but also would like 
> to be able to put arbitrary X and Y axes vectors on, as in pcolor(x,y,z)
> Thanks,
> Glenn

Using the extent kwarg, you can apply any linear scale to the imshow 
axes.  An alternative is to use the Axes.pcolorfast method, which uses 
the imshow code (but without interpolation) if the grid is regular, and 
slower codes, but still much faster than pcolor, if the grid is 
irregular, or not rectangular.

Eric

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