Comments (7)
apjanke
commented on June 15, 2024
Based on https://github.com/Homebrew/homebrew-science/issues/1275, it sounds like that error happens if gnuplot was built without Qt bindings. And indeed, in the gnuplot formula, the qt dependency is :optional, not :recommended.
Meanwhile, the GUI for my Octave.app build is not plotting anything.
>> sombrero
set term qt
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
gnuplot> set terminal aqua enhanced title "Figure 1" size 560 420 font "*,6.66667" dashlength 1
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Plotting with an 'unknown' terminal.
No output will be generated. Please select a terminal with 'set terminal'.
I'm going to try customizing the gnuplot formula to install the Qt bindings.
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apjanke
commented on June 15, 2024
That was at least part of it. Building gnuplot with Qt bindings made plotting work again, and I think I'm seeing fewer of the "unknown or ambiguous terminal type" errors in the test suite. But some of them are still there.
publish.tst .................................................
set term qt
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
./base/gsicc_manage.c:1172: gsicc_open_search(): Could not find default_rgb.icc
| ./base/gsicc_manage.c:1838: gsicc_set_device_profile(): cannot find device profile
set term qt
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
./base/gsicc_manage.c:1172: gsicc_open_search(): Could not find default_rgb.icc
| ./base/gsicc_manage.c:1838: gsicc_set_device_profile(): cannot find device profile
set term qt
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
./base/gsicc_manage.c:1172: gsicc_open_search(): Could not find default_rgb.icc
| ./base/gsicc_manage.c:1838: gsicc_set_device_profile(): cannot find device profile
...
Made a gnuplot-octave-app formula for the customizations. Enabled Cairo while I was in there, since I had seen Schoeps do that in his formulae, I think.
Fewer failing tests; we're down to 4.
Summary:
PASS 14933
FAIL 4
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apjanke
commented on June 15, 2024
I reinstalled my main Homebrew's gnuplot --with-qt --with-cairo to see if that would make the errors in the test suite go away. Suspected maybe Octave was calling out to a default /usr/local/bin/gnuplot for some of its work.
They didn't go away. That wasn't it.
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apjanke
commented on June 15, 2024
This is one of the tests that triggered it. I determined this by doing test legend verbose.
***** testif ; any (strcmp ("gnuplot", available_graphics_toolkits ()))
toolkit = graphics_toolkit ("gnuplot");
h = figure ("visible", "off");
unwind_protect
position = get (h, "position");
plot (rand (3));
legend ();
filename = sprintf ("%s.eps", tempname ());
print (filename);
unlink (filename);
assert (get (h, "position"), position);
unwind_protect_cleanup
close (h);
graphics_toolkit (toolkit);
end_unwind_protect
It happens at the print step.
>> toolkit = graphics_toolkit ("gnuplot")
toolkit = qt
>> h = figure ("visible", "off");
>> position = get (h, "position");
>> plot (rand (3));
>> legend ();
>> filename = sprintf ("%s.eps", tempname ());
>> print (filename);
set term qt
^
line 0: unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
>>
Stepping through print, I can observe that it happens at line 568, where __gnuplot_print__ is called.
switch (tk)
case "gnuplot"
opts = __gnuplot_print__ (opts);
Stepping through scripts/plot/util/private/__gnuplot_print__.m, I can observe it happens at:
78: eps_drawnow (opts, opts.name, gp_opts);
218: local_drawnow (["postscript eps " gp_opts], epsfile, opts);
230: drawnow (term, file);
__gnuplot_draw_now__.m: 39: plot_stream = __gnuplot_open_stream__ (2, h);
__gnuplot_open_stream: 32: [plot_stream(1), plot_stream(2), pid] = popen2 (prog, args{:});
debug> prog
prog = gnuplot
debug> args
args = {}(0x0)
debug> system('which gnuplot')
/Applications/Octave-4.4.0.app/Contents/Resources/usr/bin//gnuplot
debug> dbstack
stopped in:
--> __gnuplot_open_stream__ at line 32 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/private/__gnuplot_open_stream__.m]
__gnuplot_drawnow__ at line 39 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/__gnuplot_drawnow__.m]
__gnuplot_print__>local_drawnow at line 230 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/private/__gnuplot_print__.m]
__gnuplot_print__>eps_drawnow at line 218 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/private/__gnuplot_print__.m]
__gnuplot_print__ at line 78 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/private/__gnuplot_print__.m]
print at line 568 [/Applications/Octave-4.4.0.app/Contents/Resources/usr/Cellar/octave_4.4.0/4.4.0/share/octave/4.4.0/m/plot/util/print.m]
Maybe print using the plain "gnuplot" graphics toolkit is an issue?
It's calling out to plain gnuplot, which in that environment resolves to the bundled gnuplot.
Hmm. I get the same error when calling that bundled gnuplot from the command line.
$ GNUTERM=qt /Applications/Octave-4.4.0.app/Contents/Resources/usr/bin//gnuplot
G N U P L O T
Version 5.2 patchlevel 4 last modified 2018-06-01
...
Terminal type is now 'unknown'
set term qt
^
unknown or ambiguous terminal type; type just 'set terminal' for a list
WARNING: Error during initialization
Maybe it was built wrong, or has trouble linking to Qt libs at the non-default location? I did an otool -L on it, and it's not showing any Qt libraries. My /usr/local/bin/gnuplot does.
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apjanke
commented on June 15, 2024
Aha, that was the problem: a bad gnuplot-octave-app build. When I changed the dependency from qt to qt-octave-app, the implicit --with-qt option went away, and I needed to add in an explicit option --without-qt to make the build.with?("qt") tests work right. (Since I'm still just calling the option "qt" instead of renaming the tests and option.)
Fixed in octave-app/homebrew-octave-app-bases@9d8616f.
Rebuilt Octave.app with a fixed gnuplot-octave-app, and those errors went away.
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apjanke
commented on June 15, 2024
This problem came back in the 4.4.1 RC1 build. We switched to using an un-hacked qt formula, and that had the side effect of restoring the --with-qt option and making it non-default. So its newly-grabbed gnuplot formula was building without Qt.
I modified our gnuplot_5.2.6 formula to build with Qt in octave-app/homebrew-octave-app@fcbbd59
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apjanke
commented on June 15, 2024
That fixed it.
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