Re: wxt mouse scrolling anomalies

[sfeam (E. Merritt) <eam...@gm...>]

On Friday, 09 November 2012, pl...@pi... wrote:
> Hi ,
> 
> recent cvs gnuplot:
> 
> I've just noticed that mouse scrolling window in wxt  causes functions 
> to be replotted full width , not with in the limits of data as in 
> initial plot.
> 
> Also grid gets calculated to grossly different tic intervals on just one 
> scroll event in either direction. eg my plot auto scales to [-1:+1] and 
> gets 0.2 intervals. Or scroll it gets 0.5 intervals.
> 
> Autoscale button fixes it , replot button/command, no.

I am not seeing any of that here.
So I really can't say what might be going wrong.

> I would have expected scroll to do no more that move what is already 
> there. 

Well no, that's not how it works.  If it did that it would show blank
space in the area that enters your field of view.  Instead it adds some
incremental amount to the upper/lower axis range and replots.
I can see how there may be certain cases for which that could change
the tic interval, but I haven't noticed it being a problem in practice.

> I don't recall seeing either of these before (though the function 
> range may not always be obvious).  Previously running prob 6m old CVS.

I don't see anything much related to scrolling in the ChangeLog
for the last 6 months.
What "last modified" date is reported when you start the program?

> datafile has data in range [-50:50] which autoscales to [-60:60]
> 
> f(x)=0
> plot datafile, f(x)

I tried that.  Nothing special happened with regard to scrolling.