Re: Hot key to toggle log scale is broken

[Hans-Bernhard B. <HBB...@t-...>]

Ethan A Merritt wrote:

> One might plausibly want to toggle log scaling on the colorbar but you can't,
> because the hotkey tries to toggle Z also (or instead?)

I suspect that's "instead".  If memory serves, when mouse interaction 
was added, pm3d still assumed z and cb axes to be the same thing. 
4-column pm3d came later.  The colour axis may not even have _had_ a log 
setting to be toggled, at that time.

> I propose to restrict the effect of 'l' and 'L' to the X,Y axes in 2D
> and the Z axis in 3D.  We can add another hotkey, probably 'c', to 
> explicitly toggle log scaling on the colorbar in both 2D and 3D plots.

I don't think we need a separate hotkey.  'l' only acts on the axis the 
mouse is close to.  So it should act on the cb axis only if the colorbox 
is visible, and the mouse is inside it.