#2600 term "qt": plot window not interactive when started from script file.

[Daniel Dan K.]

Running gnuplot 5.4.6 on Windows 10.

Prerequisite: gnuplot has been installed with file associations (i.e., *.gp) configured by the installer. Otherwise, create a file association manually.

Now create a script file containing gnuplot commands:

set term qt
plot sin(x)

and save it to a file named plot.gp. This file should show the gnuplot icon.

Double-click on this file.

The qt plot windows open.

Try to interact with the plot window, e.g., click on the grid icon to toggle grid on and off, zoom using right-mouse, pan using cursor keys, etc.

Observe, that it does not respond. No interactivity is possible.

I think this is a bug.

If I set the terminal to "wxt", I can interact with the plot window.

[Tatsuro MATSUOKA]

set term qt
plot sin(x)

For me, gnuplot winows shows up for short and closes.

set term qt
plot sin(x)
pause -1

I can interact the plot windows

I cannot reproduce.

[Ethan Merritt]

Since it is running from a script rather than from the command line, it would be better to use

set term qt
plot sin(x)
pause mouse close

This should leave the window open, and gnuplot running underneath to support zoom/redraw/etx, until you close the plot window

[Daniel Dan K.]

Thank you very much for your comments.

I don't know why I see a different behavior than Matsuoka-san regarding gnuplot plot window. That's puzzling.

However, suggesting to use pause was successful to enable interactivity.

While pause -1 enables interactivity with the qt plot window, it also opens a small popup-window with the text "paused". That's superfluous and kind of annoying because I have to close it seperately and if I close it before I close the plot window I'll loose interactivity.

Therefore I'm resorting to pause mouse close to enable interactivity with the qt plot window. Works like a charm.