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>>>>> "Eric" == Eric Firing <ef...@ha...> writes:

    Eric> command.  If there is any sentiment that it would be
    Eric> desirable, I could make legend understand it as well, for
    Eric> the sake of consistency.

I'm +1 on this.  It only inconveniences power users.  

    Eric> I factored the plot box resizing and repositioning code out
    Eric> into a PBox class ("Position Box", subclassed from list),
    Eric> presently in its own pbox.py file, because I think it will
    Eric> be more generally useful; the colorbar command is one such
    Eric> intended use.  It may be helpful to make Axes._position a
    Eric> PBox instance instead of an ordinary list.

PBox appears to overlap matplotlib._transforms.BBox.  Granted, the
mostly universal consensus is that mpl transforms are SNAFU-d (but
mostly work!), but is this increasing confusion by duplicating
functionality?  In any case, you might consider simply extending BBox
(even if in python rather than extension code) or adding PBox to
transforms, cbook, or mlab, and describing what it does and how it is
different from BBox.  It probably does not merit a separate module.

    Eric> I think that aspect-ratio handling is now reasonably solid
    Eric> and complete; I have tested it with pan and zoom, with and

For the record, this is a major and non-trivial step.  I certainly
threw up my hands at attempting to fix it more than a year ago after
in-depth discussions with Perry about what was involved in making this
work in the presence of figure resizing, axes data limits, image
aspect ratios, etc.  Thanks Eric and Mark for months of hard work.
This, plus prototype 3D, almost made me want to push for 1.0 :-).
Until, of course, I realized how much work still needs to be done on
the basics (Axis line handling and easy installation come to mind)

    Eric> without ganged axes.  I had to put in a couple of hacks in
    Eric> backend_bases to prevent exceptions. (More careful analysis

Could you summarize these hacks here so we can look over them?

    Eric> Thank you, Mark, for the original work that made the changes
    Eric> possible.

Ditto.

JDH