Ben Gamari (FOSS) wrote:
> Hey all,
> 
> I've come across quite a problem while using pylab in a recent project.
> It seems that the second time I call axvspan or axvline, the view limits
> are reset (seemingly arbitrarily). I have attached a code sample
> (derived from my project) to demonstrate this issue. The code sample
> opens a figure with a single line and vline, adding another set with
> every key press. You will see that when the figure is initially plotted,
> the view limits are correct for the dataset, however as the second
> line/vline is plotted, the limits are stretched. It seems that this must
> be a bug in matplotlib. Any help or input anyone could offer would be
> greatly appreciated. Thanks,

This bug is fixed now in svn for axvline and axhline.  If you need a 
workaround for your current version of mpl, you could save the view 
limits before the axvline call and restore them after it.

I still need to check axvspan and axhspan; they probably need a similar fix.

Eric

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