You can call
ax.apply_aspect()
to do the aspect ratio calculations -- seems to work for me here with
your example.
The aspect ratio code has always felt like a bit of a black art to me
(it's a seemingly "necessarily complex" piece of code). Maybe someone
else can answer -- is there a reason not to call apply_aspect() from
set_aspect() besides a little extra computation? It obviously will
still have to be called from draw (in case the figure size changes), but
does it hurt to do it one extra time?
Cheers,
Mike
Mark Bakker wrote:
> Hello -
>
> As reported in an earlier post, when setting aspect ratio, the axis
> limits don't get updated correctly it seems. Or maybe I have to make
> another function call. Very easy example:
>
> from pylab import *
> ax = subplot(211)
> plot([1,2,3])
> ax.set_aspect('equal',adjustable='datalim')
> print ax.get_xlim() # Gives you (0.0, 2.0), which is incorrect, as the
> data limits have been stretched.
> draw()
> print ax.get_xlim() # Gives (-1.8243394308943093, 3.8243394308943093) or
> something like it, which is correct
>
> I don't want to call draw, so is there some other function I can call to
> update the axis limits? Should that function be called automatically
> from set_aspect ?
>
> I am using mpl 0.92.1. Thanks, Mark
--
Michael Droettboom
Science Software Branch
Operations and Engineering Division
Space Telescope Science Institute
Operated by AURA for NASA
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