Re: [Matplotlib-users] images from data

[Michael V. De P. <mde...@ma...>]

On Sat, Apr 29, 2006 at 08:41:48AM -1000, Eric Firing wrote:
> How easy it is to do this depends on your ascii file format, and how the 
> data are organized in it.  Are the points in order? e.g.
> 
> x0, y0, z00
> x0, y1, z01
> x0, y2, z02
> x1, y0, z10
> x1, y1, z11
> x1, y2, z12

This is precisely the ordering.

> Are the values space-delimited, or comma-delimited, or in some other
> format?

The values are space-delimited. The way I am reading them in is with
readline, then splitting the resulting string and appending to a list
of x, y, and z values.

> Is the grid uniform in the sense that all the x-intervals are the same 
> and all the y-intervals are the same?

Unfortunately, the grid is not uniform. From the responses I have been
getting thus far, it's looking like this is going to be far more
complicated than I had hoped...

Would it in principle be difficult to write a function similar to
imshow that can take 3 arrays and plot z (in color, say) as a function
of x and y? To me, it would seem that it would essentially be the same
as the plot function, except that it takes an extra array...

Mike