This slightly modified excerpt from the new version of spy may do what
you want:
nr, nc = Z.shape
extent = [-0.5, nc-0.5, nr-0.5, -0.5]
return self.imshow(Z, interpolation='nearest',
extent=extent, origin='upper')
Eric
John Travers wrote:
> Hi, I'm struggling to get an array plotted the way I want with imshow.
> I have an array A which i try to plot with
>
> e=(tdims[0], tdims[-1], wldims[-1], wldims[0])
> imshow(A,extent=e)
>
> The image displays fine in the x axis, with tdims marked correctly,
> but in the yaxis the dimensions are incorrect. And no combination of
> extent and origin gives the correect display. To be more clear,
> without extent set I get the array displayed the right way round, but
> my problem is that my y axis should be *decreasing* as it goes up the
> side of the image; if I set extent correctly, the image is scaled
> right with respect to the y axis, but it is flipped so that the y axis
> is increasing upwards. Is there a way to prevent this?
>
> Many thanks for any help!
> Ans thanks for an excellent plotting library!
>
> Best regards
> John
>
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