imshow requires the data to be regularly spaced. use pcolor instead.
Also, to be clear, pcolor() can take 1-D X and Y arguments, but only if it
is regular. If the coordinates are irregular, then you need to use 2D X and
Y arguments.
Ben Root
On Wed, Jul 7, 2010 at 5:15 PM, Ross Williamson <
rosswilliamson....@gmail.com> wrote:
> Hi Everyone
>
> I think I'm being dumb but I have a set of 2d data (2d array) z
> (100x100) which I need to plot - I have a nominal set of x and y
> positions say:
>
> x = linspace(0,100)
> y = linspace(0,100)
>
> Now the actual positions of the points in z are given by the following:
>
> u,v = meshgrid(x,y)
>
> phi = arctan2(v,u)
> theta = arcsin(u/cos(phi))
>
> so I have three 2d arrays (100x100) which describe the postion
> (phi,theta) of the points in z
>
> How do I go about plotting these say using imshow?
>
> Cheers
>
> Ross
>
> --
> Ross Williamson
> University of Chicago
> Department of Astronomy & Astrophysics
> 773-834-9785 (office)
> 312-504-3051 (Cell)
>
>
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