A fellow from Mexico has written a Tcl/Tk front-end called unignuplot.
http://unicalculus.sourcefiorge.net
This is the only thing like this of which I am aware.
Matt
On Sat, 25 Nov 2000, Matej Cepl wrote:
> Hi,
>
> I am doing some graphs to my paper and I am using gnuplot.
> However, I feel lilke working with plainTeX -- results are
> excellent but user-interface terrible. I feel strong need of
> some "LyX for gnuplot" -- superstructure allowing WYSIWYM work
> with gnuplot. Do you know about something like it?
>
> Matej
>