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Groups > comp.graphics.apps.gnuplot > #3644

Re: Is Subsecond Pause Possible?

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F. Russell wrote:

> Hello,
> 
> I am attempting to produce simple animations using gnuplot:
> 
> set parametric
> 
> a_time=0
> 
> plot f(a_time), g(a_time) with points pt 7 ps 2 lc 2
> 
> do for [i=1:400] { \
> replot f(a_time), g(a_time) with points pt 7 ps 2 lc 2; \
> a_time=a_time+0.01; \
> pause 0.3 }
> 
> This method works very well in producing a moving point
> but the interval between replots is too large.  Even though
> I have specified a 0.3 second pause, the pause is actually
> 1 second.

I am pretty sure you want "plot ..." rather than "replot...",
or else you want "replot;" with no trailing functions.

As it stands your "replot" instruction creates a longer plot sequence
each time it executes, so by the end of your loop it is drawing
400 plots on top of each other per iteration.  I can see how
that might slow it down.  

Nevertheless, if I change that to "pause delta" and set
"delta = 0.01" before the loop then I see a 
rapid animation despite the redundant replotting.

 
> The gnuplot manual states:
> 
> "The time is rounded to an integer number of seconds if subsecond
> time resolution is not supported by the given platform."
> 
> The terminals I use are x11 and wxt on a GNU/Linux Intel Core i7
> system.
> 
> Is a subsecond pause possible with gnuplot or will the time
> always be rounded to the next second?

I think all modern platforms support subsecond resolution.
The caveat is left over from MSDOS days.

	Ethan

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Thread

Is Subsecond Pause Possible? "F. Russell" <fr@random.info> - 2017-05-14 15:03 +0000
  Re: Is Subsecond Pause Possible? Karl Ratzsch <mail.kfr@gmx.net> - 2017-05-14 19:07 +0200
  Re: Is Subsecond Pause Possible? Ethan A Merritt <EAMerritt@gmail.com> - 2017-05-14 10:54 -0700
    Re: Is Subsecond Pause Possible? "F. Russell" <fr@random.info> - 2017-05-14 18:47 +0000

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