[Octave-bug-tracker] [bug #65687] [Qt Backend] LineWidth parameter ignored

[INVALID.NOREPLY]

Follow-up Comment #3, bug #65687 (group octave):

Sadly I do not know how to apply that test using "QT_OPENGL=desktop" I don't
know where I have to put that command.

I have to correct my posting, I tested the code from the original submission
and tested also "gnuplot toolkit" that error occurred then and also, when I
used "qt toolkit" afterward


>> graphics_toolkit('gnuplot')

x = 0:0.1:10;

y = x.^2;

plot(x, y);

title('Test Plot');

xlabel('x');

ylabel('y = x^2');
warning: using the gnuplot graphics toolkit is discouraged

The gnuplot graphics toolkit is not actively maintained and has a number
of limitations that are unlikely to be fixed.  Communication with gnuplot
uses a one-directional pipe and limited information is passed back to the
Octave interpreter so most changes made interactively in the plot window
will not be reflected in the graphics properties managed by Octave.  For
example, if the plot window is closed with a mouse click, Octave will not
be notified and will not update its internal list of open figure windows.
The qt toolkit is recommended instead.
qt.qpa.fonts: Populating font family aliases took 59 ms. Replace uses of
missing font family"Sans" with one that exists to avoid this cost.
>> qt.pointer.dispatch: skipping QEventPoint(id=1 ts=0 pos=0,0
scn=718.252,837.048 gbl=718.252,837.048 Released ellipse=(1x1 ∡ 0) vel=0,0
press=-718.252,-837.048 last=-718.252,-837.048 Δ 718.252,837.048) : no target
window

>> graphics_toolkit('qt')

x = 0:0.1:10;

y = x.^2;

plot(x, y);

title('Test Plot');

xlabel('x');

ylabel('y = x^2');

>> qt.pointer.dispatch: skipping QEventPoint(id=1 ts=0 pos=0,0
scn=524.742,648.248 gbl=524.742,648.248 Released ellipse=(1x1 ∡ 0) vel=0,0
press=-524.742,-648.248 last=-524.742,-648.248 Δ 524.742,648.248) : no target
window

>>


When I use a newly started window and directly use "qt toolkit" that error
doesn't occur, but a fallback warning. But this warning is there since ever.

And in this case, also the linewidth issue is present for me


>> graphics_toolkit('qt')

x = 0:0.1:10;

y = x.^2;

plot(x, y,'linewidth', 100);

title('Test Plot');

xlabel('x');

ylabel('y = x^2');

>> FALLBACK (log once): Fallback to SW vertex for line stipple
FALLBACK (log once): Fallback to SW vertex processing, m_disable_code: 2000
FALLBACK (log once): Fallback to SW vertex processing in drawCore,
m_disable_code: 2000


sorry for the initial confusion



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