bugGNU Octave - Bugs: bug #50612, warning: opengl_renderer: Error...

 
 

bug #50612: warning: opengl_renderer: Error 1286 occurred in init_gl_context

Submitted by:  None
Submitted on:  Wed 22 Mar 2017 08:56:26 PM UTC  
 
Category: Plotting with OpenGLSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Unexpected Error
Status: FixedAssigned to: None
Originator Name: OliOriginator Email: -unavailable-
Open/Closed: ClosedRelease: 4.2.1
Operating System: Mac OS

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Mon 22 May 2017 05:20:41 PM UTC, comment #3:

See comment #1. You will need to build from development source code (not the stable release 4.2.1) in order to see the fix for OpenGL plotting.

If there is a problem with gnuplot, check that it hasn't already been reported here on savannah. If it hasn't, then file a new bug report with some sample code.

Rik <rik5>
Project Administrator
Mon 22 May 2017 04:36:49 PM UTC, comment #2:

Hello!

I am also getting this error when installed octave via homebrew using the default qt graphics toolkit.

I am simply trying to plot points overtop a matrix image using the code found at

https://www.gnu.org/software/octave/doc/interpreter/Plotting-on-top-of-Images.html

What I am getting is found in Figure 1 (the image takes up a 1/4 of the plot window instead of the entire window).

I have posted the same issue at

https://computergraphics.stackexchange.com/questions/5024/octave-matrix-to-image-pixels-too-small-do-not-have-1-pixel-per-integer

if that helps. I can't seem to find anyone else with the same problem, any help would be greatly appreciated.

Also, when I use graphics_toolkit("gnuplot") I can plot matrix images perfectly until I plot overtop of them, then I get the following error with a random pixellated image

multiplot> B
^
line 0: invalid command

Thank you and let me know if there is any more information I can provide.

(file #40758)

Myles M <marinmb>
Wed 22 Mar 2017 09:33:11 PM UTC, comment #1:

I think this has been fixed on the development branch of Octave. You would need to try building from Mercurial sources or wait until the next stable release of Octave 4.4, but that might be a while.

In the short term you could also switch to a non-OpenGL toolkit.

Rik <rik5>
Project Administrator
Wed 22 Mar 2017 08:56:26 PM UTC, original submission:

I just installed Octave with brew using this command:

```
brew install octave --build-from-source
```

After using the imshow('./path/to/image.jpg'); function in the Octave GUI, I'm getting an annoying warning, although the image does display in a new window:

```

>> imshow('~/Downloads/image.jpg');

warning: opengl_renderer: Error 1286 occurred in init_gl_context
warning: called from
findobj at line 85 column 5
axis>__get_tight_lims__ at line 347 column 8
axis>__do_tight_option__ at line 396 column 8
axis>__axis__ at line 249 column 7
axis at line 155 column 7
image>__img__ at line 180 column 9
image at line 117 column 10
imshow at line 204 column 10
```

I would basically like to get rid of that warning since it doesn't seem to be a real problem.

Anonymous

 

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Attached Files
file #40758:  Figure 1.png added by marinmb (78KiB - image/png)
file #40756:  Screen Shot 2017-05-22 at 11.13.03 AM.png added by marinmb (78KiB - image/png - I am getting this error with the following with 1) Installed via octave via homebrew, 2) using the code on the following octave page (https://www.gnu.org/software/octave/doc/interpreter/Plotting-on-top-of-Images.html) I am getting the resulting image )

 

Depends on the following items: None found

Items that depend on this one: None found

 

Carbon-Copy List
  • -unavailable- added by marinmb (Updated the item)
  • -unavailable- added by rik5 (Updated the item)
  • -unavailable- added by None (Submitted the item)
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    Follow 6 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Mon 22 May 2017 04:36:49 PM UTCmarinmbAttached File-=>Added Figure 1.png, #40758
    Mon 22 May 2017 04:18:54 PM UTCmarinmbAttached File-=>Added Screen Shot 2017-05-22 at 11.13.03 AM.png, #40756
    Mon 27 Mar 2017 08:12:29 PM UTCrik5StatusNone=>Fixed
      Open/ClosedOpen=>Closed
    Wed 22 Mar 2017 09:33:23 PM UTCrik5Carbon-CopyRemoved 72865=>-
    Wed 22 Mar 2017 09:33:11 PM UTCrik5CategoryNone=>Plotting with OpenGL

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