bugGNU Octave - Bugs: bug #44168, Symbol flood on terminal, after...

 
 

bug #44168: Symbol flood on terminal, after imagesc and print, with large enough matrix

Submitted by:  None
Submitted on:  Tue 03 Feb 2015 09:54:01 AM UTC  
 
Category: Plotting with gnuplotSeverity: 3 - Normal
Priority: 5 - NormalItem Group: Incorrect Result
Status: ConfirmedAssigned to: None
Originator Name: stegrobtOriginator Email: -unavailable-
Open/Closed: OpenRelease: dev
Operating System: GNU/Linux

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Sun 18 Dec 2016 10:31:06 PM UTC, comment #3:

It is also interesting that
imagesc(data') seems to work for all sizes.

Dmitri.

Dmitri A. Sergatskov <dasergatskov>
Sun 18 Dec 2016 08:31:56 PM UTC, comment #2:

This issue is still present in Octave 4.2.0.

Hartmut <hardy>
Tue 03 Feb 2015 07:29:47 PM UTC, comment #1:

Confirmed. This behavior doesn't appear to be new either. I found the same problem with the development version, 3.8.2, and 3.6.4.

Rik <rik5>
Project Administrator
Tue 03 Feb 2015 09:54:01 AM UTC, original submission:

#!/usr/bin/env octave

# Hello everyone,
# I have an issue with image/imagesc plots of certain size.
# If I run the script below, I get a terminal flooded with weird
# symbols, as if there was something binary misinterpreted,
# some files with similar names are created, however
# not the desired correct plot.
# I can't tell whether it's an octave or gnuplot bug.
# Thanks

graphics_toolkit("gnuplot")
n = 10000 % this causes symbol-flood
%n = 9999 % this works
data=rand(n,8); % or other data, does not have to be random
%data=zeros(n,8); % (however this seems to be okay^^)
imagesc(data) % ...then the terminal will be flooded with symbols at printtime
% plot(data) % ... but this works
print(["whyowhy.png"],"-dpng")

Anonymous

 

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  • -unavailable- added by dasergatskov (Posted a comment)
  • -unavailable- added by hardy (Posted a comment)
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    Follow 3 latest changes.

    Date Changed By Updated Field Previous Value => Replaced By
    Sun 18 Dec 2016 11:30:22 PM UTCrik5Carbon-CopyRemoved 72865=>-
    Tue 03 Feb 2015 07:29:47 PM UTCrik5Item GroupSegfault, Bus Error, etc.=>Incorrect Result
      StatusNone=>Confirmed

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