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[Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim set
From: |
Hg200 |
Subject: |
[Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings |
Date: |
Sat, 29 Aug 2020 04:00:22 -0400 (EDT) |
User-agent: |
Mozilla/5.0 (X11; Fedora; Linux x86_64; rv:78.0) Gecko/20100101 Firefox/78.0 |
Follow-up Comment #9, bug #58956 (project octave):
Thank you for your feedback. Speaking of alternative bugfixes, I don't think
that just correcting the camera position is enough to solve the whole
problem.
If I undo the patch from bug #54551 and add
++
set(gca, 'CameraPosition', [0.014392034052167, 0.134014656653948,
2.411976487699734]*1e13);
--
after "axis equals" in three_body_planar.m (see comment #8), the axis and
scatter objects are displayed correctly, but the trajectories (= line plots)
in the first figure, before the loop begins are still invisible. To see the
demo correctly, you may take a fresh copy of three_body_planar.m, without
modification and remove "axis equal" and uncomment the following lines:
++
dz = 1/sqrt((xrange(2)-xrange(1))^2+(yrange(2)-yrange(1))^2);
daspect ([1, 1, dz]);
--
Not showing the lines isn't a smoothing artifact, since
++
set (gcf, 'graphicssmoothing', 'off');
--
does not make the lines appear (references: bug #57336, bug #56979, bug
#54554).
I still have a doubt it's a problem when (far+near)/(far-near) in glOrtho gets
too big. Question: Is there a documentation on
"axes::properties::update_camera", or do we have to analyze the source code? I
want to understand the transformation matrices but it costs much time to go
through the code.
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- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Hg200, 2020/08/14
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Doug Stewart, 2020/08/14
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Dmitri A. Sergatskov, 2020/08/14
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Hg200, 2020/08/16
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Philip Nienhuis, 2020/08/16
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Hg200, 2020/08/22
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Markus Mützel, 2020/08/24
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Hg200, 2020/08/24
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings, Markus Mützel, 2020/08/28
- [Octave-bug-tracker] [bug #58956] Empty plot for certain xlim / ylim settings,
Hg200 <=