bugGNU Octave - Bugs: bug #63946, plot(1:0.01:10) opens an empty...

 
 

bug #63946: plot(1:0.01:10) opens an empty figure (with 'qt' graphics toolkit)

Submitter:  Fausto Ramos <foramos>
Submitted:  Sun 19 Mar 2023 02:17:11 PM UTC
   
 
Category:  Plotting Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Other
Status:  None Assigned to:  None
Originator Name:  Open/Closed:  * Open
Release:  * 8.1.0 Operating System:  * Microsoft Windows
Fixed Release:  None Planned Release:  None
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Tue 21 Mar 2023 04:31:35 PM UTC, comment #7: 

Just did it. Great, thanks again!

comentário #6:

> You can add this line to your octave start up file (.octaverc).
>
> Dmitri.
> --
>
>

Fausto Ramos <foramos>
Tue 21 Mar 2023 01:42:18 PM UTC, comment #6: 

You can add this line to your octave start up file (.octaverc).

Dmitri.
--


Dmitri A. Sergatskov <dasergatskov>
Tue 21 Mar 2023 12:57:08 PM UTC, comment #5: 

It worked! Thanks!


comentário #3:

> As a simple test, try on a freashly-started octave:


> >> setenv("QT_OPENGL", "desktop")
> >> plot(1:10)


>
> Dmitri.
> --
>

Fausto Ramos <foramos>
Sun 19 Mar 2023 06:17:38 PM UTC, comment #4: 

I can reproduce the problem (on Win 11 i9-9880 intel graphics) if I do (on a freshly restarted octave):


setenv("QT_OPENGL", "desktop")
plot(1:10)


with either software or hardware driver it produces a blank screen.

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sun 19 Mar 2023 04:40:16 PM UTC, comment #3: 

As a simple test, try on a freashly-started octave:

>> setenv("QT_OPENGL", "desktop")
>> plot(1:10)


Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sun 19 Mar 2023 04:30:30 PM UTC, comment #2: 

See also
https://savannah.gnu.org/bugs/?62660

and a work around (setting QT_OPENGL variable) there.

Dmitri.
--

Dmitri A. Sergatskov <dasergatskov>
Sun 19 Mar 2023 04:18:49 PM UTC, comment #1: 

1 - switching toolkit just changes the figure/plot renderer, not what is used to run the GUI. you can test this just by running graphics_toolkit('fltk') or graphics_toolkit('gnuplot')

2 - I'm running octave 8.1.0 on Win10 and have no problems with plotting.  how did you install octave?

Nicholas Jankowski <nrjank>
Group Member
Sun 19 Mar 2023 02:17:11 PM UTC, original submission:  

Hi,

I'm just downloaded Octave v. 8.1.0 (the same error to be described here was found in a previous version.) When try to execute a simple plot command (e. g., plot(1:0.01:10)) with graphics_toolkit = 'qt', a figure opens with nothing inside it. I even waited some minutes (perhaps could be a simple delay), but nothing appeared.

It would be possible to change the graphics_toolkit, but the GUI edition (which I also intend to use) relies on the 'qt' one. I'm running Octave in a HP430 computer (core I3), 8GB of RAM.

Fausto Ramos <foramos>

 

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