Re: [Matplotlib-users] Squashed axes with AxesGrid

[Benjamin R. <ben...@ou...>]

On Fri, Mar 22, 2013 at 12:30 PM, Steven Boada <bo...@ph...>wrote:

> Well... I jumped the gun. To better illustrate the problem(s) I am having,
> I wrote a simple script that doesn't work...
>
> import pylab as pyl
> from mpl_toolkits.axes_grid1 import AxesGrid
>
> # make some data
> xdata = pyl.random(100) * 25.
> ydata = pyl.random(100) * 8.
> colordata = pyl.random(100) * 3.
>
> # make us a figure
> F = pyl.figure(1,figsize=(5.5,3.5)**)
> grid = AxesGrid(F, 111,
>         nrows_ncols=(1,2),
>         axes_pad = 0.1,
>         add_all=True,
>         share_all = True,
>         cbar_mode = 'each',
>         cbar_location = 'top')
>
> # Plot!
> sc1 = grid[0].scatter(xdata, ydata, c=colordata, s=50, cmap='spectral')
> sc2 = grid[1].scatter(xdata, ydata, c=colordata, s=50, cmap='spectral')
>
> # Add colorbars
> grid.cbar_axes[0].colorbar(**sc1)
> grid.cbar_axes[1].colorbar(**sc2)
>
> grid[0].set_xlim(0,25)
> grid[0].set_ylim(0,8)
>
> pyl.show()
>
>
> And you get some squashed figures... I'll attach a png.
>
> Thanks again.
>
> Steven
>
>
You used AxesGrid again, not Grid.  AxesGrid implicitly applies an
aspect='equal' to the subplots.  This means that a unit of distance on the
x-axis takes the same amount of space as the same unit of distance on the
y-axis.  In your example, the x axis goes from 0 to 25, while the y-axis
goes from 0 to 8.  When aspect='equal', the y-axis will then be about a
third the size of the x-axis, because the y-limits are about a third the
size of the x-limits.

Ben Root