I'm not sure that example below is what just you want.
The key commands are 'load', 'reread' and 'every'.
Please see gnuplot's help for details.
Usage: Prepare "parab.plt" and "parabone.plt", and execute as
### parab.plt ###
set term table
set out 'parab.dat'
plot [0:1] 1-4*(x-0.5)**2
set term x11
### parabone.plt ###
if (j == 0) plot [0:1][0:1] "parab.dat" every 1:1:i:0:i:0
if (i < 100 && j == 0) i=i+1
if (i == 100) exit
j = (j < interval) ? j+1: 0 ; reread
If you use developer's version 3.8j, "parabone.plt" turns simple.
### parabone.plt (using 3.8j) ###
plot [0:1][0:1] "parab.dat" every 1:1:i:0:i:0
if (i <100) i=i+1; pause interval; reread
>Hello... I'd like to ask you how to plot a datafile slowly; I've got a
>trajectory to plot and I'd like that gnuplot plots it slowly, so as to see
>how it goes from the beginning to the end. If this is possible... is it
>also possible that the trajectory "doesn't leave a track"? (I mean, that
>only the leading dot of the trajectory is displayed while the trajectory
>is in the process of being plotted, so as to see like only one dot moving,
>from the beginning to the end of the plotting).
>Thank you very much for your help,
> - -
>[[[[ to unsubscribe from info-gnuplot, send an email with body
[[[[ to unsubscribe from info-gnuplot, send an email with body