bugGNU Octave - Bugs: bug #60350, Incorrect plotting of solidline...

 
 

bug #60350: Incorrect plotting of solidline with qt and fltk

Submitter:  None
Submitted:  Tue 06 Apr 2021 02:49:50 PM UTC
 
Category:  Plotting with OpenGL Severity:  3 - Normal
Priority:  5 - Normal Item Group:  Incorrect Result
Status:  Duplicate Assigned to:  None
Originator Name:  Bernard Originator Email:  -email is unavailable-
Open/Closed:  * Closed Release:  * 6.1.0
Operating System:  * Any
* Mandatory Fields

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Tue 06 Apr 2021 03:42:45 PM UTC, comment #1: 

This is a duplicate of bug #32980.

Some work arounds will be documented in the manual for the next release. See bug #59418.

Closing report.

Markus M├╝tzel <mmuetzel>
Project Member
Tue 06 Apr 2021 02:49:50 PM UTC, original submission:  

Line plots rendition in (default) solidline style depends on how big the numbers are... Does not happen when linestyle is point-like. Does not happen with gnuplot backend. Does happen with qt and fltk. Try this:

>> version

ans = 6.1.0

>> graphics_toolkit

ans = fltk

>> tn=now:1/864:now+1;   % make some date related (large) numbers
>> plot(tn,'.')          % ok (linear splope, as expected)
>> plot(tn)              % Not ok at all !!!  (broken  line)
>> plot(tn-tn(1))        % Ok again but with smaller number


Happens in:
Windows 6.1.0
Gnu/Linux 4.2.0

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    Follow 4 latest changes.

    Date Changed by Updated Field Previous Value => Replaced by
    2021-04-06 mmuetzel CategoryPlotting Plotting with OpenGL
    2021-04-06 mmuetzel StatusNone Duplicate
        Open/ClosedOpen Closed
        Dependencies- Depends on bugs #32980

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