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

[Ethan A M. <sf...@us...>]

On Monday, 10 April, 2017 16:39:41 Daniel J Sebald wrote:
> I'm working with an application right now that manually places tick 
> marks for axes.  When a plot with manual tics is zoomed, typically the x 
> and y axes don't have any tick marks on screen because the manually 
> placed tics are outside the view.  Or maybe it is just one tick visible, 
> but one tick really isn't helpful for judging dimension.

One option is to use the "add" keyword with manually placed tics.
That way they supplement rather than replacing the auto-generated tics.
Well, unless the manually added tic is at the same coordinate as an
auto-generated tics - then it does replace it.
 
> 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.

	Ethan