bugGNU Octave - Bugs: bug #49161, Error in hist plot in Manual

 
 

bug #49161: Error in hist plot in Manual

Submitter:  Michael Godfrey <godfrey>
Submitted:  Thu 22 Sep 2016 11:04:08 PM UTC
   
 
Category:  Documentation Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Regression
Status:  Duplicate Assigned to:  None
Originator Name:  godfrey Open/Closed:  * Closed
Release:  * dev Operating System:  * GNU/Linux
Fixed Release:  None Planned Release:  None
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Fri 23 Sep 2016 08:12:17 AM UTC, comment #3: 

Hi,

This is a duplicate of bug #45494, which I just retitled to ease the search. Anti-aliasing is now disabled for raster outputs, so only vector formats are affected.

Closing this report as a duplicate.

Pantxo Diribarne <pantxo>
Group Member
Fri 23 Sep 2016 01:40:12 AM UTC, comment #2: 

I can confirm this problem.
Accidentally I noticed that pdfs distributed with -rc2 tarball are produced by gnuplot.

Dmitri.

Dmitri A. Sergatskov <dasergatskov>
Thu 22 Sep 2016 11:42:49 PM UTC, comment #1: 

This is the PDF form of the manual, right?

I see the pale diagonal lines you describe in hist.pdf only, and only when built with OpenGL and OSMesa. The following command specifically, for me on my system (Intel integrated graphics), reproduces this problem:


./run-octave --no-history --norc --silent --path ~/src/octave/default/doc/interpreter/ --eval "plotimages ('doc/interpreter/', 'hist', 'pdf');"


If I unset DISPLAY, which forces gnuplot to be used instead, then I get the correct image without the pale diagonal lines.

The files hist.eps and hist.png do not exhibit this same artifact, at least for me.

Attached hist.pdf here, in case others are not able to reproduce.

(file #38591)

Mike Miller <mtmiller>
Group Member
Thu 22 Sep 2016 11:04:08 PM UTC, original submission:  

I remember that the problem now shown was once fixed, but
I cannot locate a reference. The problem that has returned
is that the histogram plot (Fig. 15.2) in the Manual shows
diagonal dashed lines within each histogram box.

The command in Octave: hist (randn (10000, 1), 30);
shows a correct histogram. Only the Manual is incorrect.

Michael Godfrey <godfrey>
Group Member

 

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Attached Files
file #38591:  hist.pdf added by mtmiller (4KiB - application/force-download)

 

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2016-09-23 pantxo StatusConfirmed Duplicate
        Open/ClosedOpen Closed
    2016-09-22 mtmiller Attached File- Added hist.pdf, #38591
        StatusNone Confirmed

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