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

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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	Fixed Release:	None
Planned Release:	None

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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 Mützel <mmuetzel>

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

Anonymous

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Depends on the following items

OpenGL plotting backend uses single precision, not double (bug #32980, Confirmed)

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bug dependencies.

Items that depend on this one: None found

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-email is unavailable- added by mmuetzel (Posted a comment)

-email is unavailable- added by None (Submitted the item)

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Follow 4 latest changes.

Date	Changed by	Updated Field	Previous Value	Replaced by
2021-04-06	mmuetzel	Category	Plotting	Plotting with OpenGL
2021-04-06	mmuetzel	Status	None	Duplicate
		Open/Closed	Open	Closed
		Dependencies	-	Depends on bugs #32980

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

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

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