[Octave-bug-tracker] [bug #51229] ylim() fails to read correct limits:

[Mike Miller]

Follow-up Comment #3, bug #51229 (project octave):

Yeah, I mean either fltk or qt. The fltk toolkit has the disadvantage that it
is on the same execution thread as the interpreter, so if you block the
interpreter, you can't interact with a figure, as you've seen.

The qt toolkit runs on a separate thread from the interpreter, so you can
interact with the plot, but there are some other open bug reports about race
conditions and other thread interaction problems. Your script works perfectly
for me with the qt toolkit.

My main point is I don't think the gnuplot toolkit will ever do what you're
looking for here. Octave tells gnuplot how to draw something, but if the user
changes it in the gnpulot window, Octave has no awareness of that.

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