On Wed, Jun 13, 2012 at 4:00 PM, Timothy Duly <timdu...@gmail.com> wrote:
> Hello,
>
> I am trying to make a simple pcolor plot with a datetime on the x-axis. I
> am able to get a time label on the x-axis fine with a regular plot command,
> but it doesn't appear to work if you use pcolor. This simple example below
> shows that it does not work. Does anyone have any idea as to why a
> datetime can't go on a pcolor plot? What is the best approach is to solve
> the problem?
>
> Thanks,
> Tim
>
>
It doesn't work because we probably never had a request for it and
therefore never tested that case. Testing it out with v1.1.1-rc2 shows
that for pcolor(), first of all, it expects a numpy array for the input
arrays (that should definitely be fixed) as opposed to a python array.
Second, fixing that, there is an issue where the Path object in the pcolor
object is expecting floating points for its vertices. If one uses
pcolormesh instead, right off the bat, there is a problem where it attempts
to make a 2-D version of the 1-D input array, but because the 2-D array was
created with default dtype, it is expecting something compatible with a
float type. Personally, I am not liking how pcolormesh is being
inefficient with my input arrays and it should really be taking advantage
of numpy broadcasting.
Could you please file a bug report on github for this issue with your code
example?
Thanks!
Ben Root
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