Re: Hot key to toggle log scale is broken

[Ethan A M. <merritt@u.washington.edu>]

On Tuesday 03 June 2008 23:49, Petr Mikulik wrote:
> > > > 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.
> > 
> > That "axis the mouse is close to" works only in 2D.
> > In 3D the hotkey always toggles Z no matter where the mouse is.
> > 
> > But yes, we could change it to check where the colorbox is in both 2D and 3D.
> 
> In 2D, it works OK.
> 
> However, the 'l' hotkey is completely broken in 3D. It should (un)log both Z 
> and CB axes, not only one of them.

No, it should not.  That is exactly what I am trying to fix.
Long ago, Z and CB tracked the same quantity and it was reasonable to
treat them jointly.  This is no longer true.
 
>The hotkey 'L' should be selective to Z 
> or CB according to position of the mouse cursor -- it's ok now.

> Another broken example:
> 
> gnuplot> set pm3d map
> gnuplot> splot x*x+y*y+1
> gnuplot>          y range has y coord of -10; must be above 0 for log scale!
> 
> I.e., the 3D hotkey functionality for 'l' should work as before the patch, 
> while the 'L' works correctly now.

The documentation has always said that 'l' toggles the Y axis in
2D plots.  This was untrue, because it toggled Z + CB instead in a 
case such as the one above.  The new code does what the documentation
has always said: toggles the Y axis. 2D and 3D plots now behave 
uniformly.  The hotkeys toggle the cb scaling if and only if the mouse
is near the color bar.

-- 
Ethan A Merritt