Re: Turn auto-ticks on automatically for zoom mode?

[Daniel J S. <dan...@ie...>]

On 04/10/2017 05:25 PM, Ethan A Merritt wrote:
> On Monday, 10 April, 2017 16:39:41 Daniel J Sebald wrote:
[snip]
>> What are people's thoughts on forcing auto-ticks to "on" when going into
>> zoom mode?  I recall a discussion from many years ago about zooming done
>> in the outboard driver without the aid of gnuplot-core plotting, and one
>> of the reasons it was a no-go was because doing zooming that way didn't
>> create new tick marks and left plot symbols overly large, etc.  That's
>> pretty much the same scenario with manual tick placement.  Zooming is a
>> random thing, so there's no way the person who places the manual ticks
>> can anticipate what adequate annotation might be.
>
> I have thought about but never seriously looked at introducing the
> notion of a "zoom tic" variant.  These tics would be hidden at the
> initially specified resolution but would appear if you zoomed in
> enough (whatever "enough" might be).
> The idea was to work around the limitation you mention of zooming
> after the fact in svg/pdf/canvas/... viewers.

The zoom tics would disappear after pressing "u" to go back to full 
range, correct?

The good thing is that the mouse coordinates and ruler are always there 
as a fall-back of sorts.  With that, one can measure the start and stop 
of some points of interest.  Of course, the zoom box also displays 
coordinates so that too can be used in a roundabout way to get dimensions.

Some observations:

* I see that the "help zoom" documentation indicates "Zooming is usually 
accomplished by holding down the left mouse button".  For me it is the 
left mouse button.  I know it can change depending on system, but which 
is the most likely to be the case?

* Also, "help zoom" indicates "The option `zoomcoordinates` determines 
if the coordinates of the zoom box are
  drawn at the edges while zooming. This is on by default. If the option 
`zoomjump` is on"  However, there is nothing in the documentation that 
suggests what or where the "option" refers to...  OK, after looking 
around a bit, I see that the options refer to "mouse".  It might be nice 
to mention in the documentation that this refers to an option for "mouse".

Dan