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

 
 

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

Submitter:  None
Submitted:  Tue 03 Feb 2015 09:54:01 AM UTC
   
 
Category:  Plotting with gnuplot Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Confirmed Assigned to:  None
Originator Name:  stegrobt Originator Email:  -email is unavailable-
Open/Closed:  * Open Release:  * dev
Operating System:  * GNU/Linux Fixed Release:  None
Planned Release:  None
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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>
Group 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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    Follow 3 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-12-18 rik5 Carbon-CopyRemoved 72865 -
    2015-02-03 rik5 Item GroupSegfault, Bus Error, etc. Incorrect Result
        StatusNone Confirmed

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