Re: [Matplotlib-users] contourf problem

[Ryan M. <rm...@gm...>]

On Sun, Mar 28, 2010 at 11:16 AM, Alan G Isaac <ala...@gm...> wrote:
> Using contourf in version 0.99.1,
> I'm seeing an unwanted white strip to
> the top and right, adjacent to the axes.
> (In fact, the strip looks just wide
> enough to underlay the ticks.)
>
> Alan Isaac
>
> PS Simple example:
>
> x = np.linspace(-5, 5, 100)
> X, Y = np.meshgrid(x, x)
> Z = np.sin(x*y[:,None])
> fig = plt.figure()
> ax = fig.add_subplot(1,1,1)
> ax.contourf(Z)

Well, in your simple example you're not even using the X and Y you
calculate to give the spatial dimensions of your data,
so it's just using indices, which run from 0 to 99. Since the limits
are 0 to 100, bam...white space because, indeed, there is no data.

If I do the following example, I don't get any whitespace:

x = np.linspace(-5, 5, 100)
X, Y = np.meshgrid(x, x)
Z = np.sin(x*x[:,None]) #Note change from bug in previous ex.
fig = plt.figure()
ax = fig.add_subplot(1,1,1)
ax.contourf(X, Y, Z)
ax.set_xlim(-5, 5)
ax.set_ylim(-5, 5)
plt.draw()

Is there something I'm missing? (Running SVN trunk here)

Ryan

-- 
Ryan May
Graduate Research Assistant
School of Meteorology
University of Oklahoma