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
Mark,
In the present design, there is quite a bit that happens only when
draw() is invoked; in particular, the apply_aspect() method is called
when an axes is drawn. set_aspect merely sets the parameters that
apply_aspect will use. It would not make sense for set_aspect to call
apply_aspect.
I have not thought this through, but in place of the call to draw() you
could try making the same call that the Axes.draw() method does:
ax.apply_aspect(ax.get_position(True))
Eric
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