On Tue, Dec 11, 2012 at 12:17 PM, Ethan Gutmann <ethan.gutm...@gmail.com>wrote:
> > This is because the default rstride and cstride arguments is 10, IIRC.
> Since your array is only 12x12, the surface plotting is barely plotting
> anything. Try calling:
> >
> > ax.plot_surface(x, y, a, rstride=1, cstride=1)
>
>
> You know, this has tripped me up a few times too. I don't use
> plot_surface often enough to always remember this, and it is not the first
> parameter I think to check when debugging a program. Is there a reason the
> default rstride and cstride aren't 1 other than possible memory constraints
> for large arrays?
>
> I suppose changing the defaults might break programs that rely on this
> behavior, but if this API ever gets revamped, consider this a request to
> make 1 be the default instead. I would think that the default should be
> that the obvious command "just works" while plots that may require too much
> memory can be tweaked to work faster (I'm assuming that is the reason for
> the default of 10).
>
>
I actually don't know the reason for the defaults (I didn't create
mplot3d), but that has always been my suspicion. There is an existing PR
to change the default behavior to be somewhat "automatic". At the time, I
wasn't really in favor of it, but when looked in this light, it does make
some more sense.
I'll have to think about this a bit more.
Ben Root
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