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[Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo tri
From: |
Rik |
Subject: |
[Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh' |
Date: |
Wed, 13 Dec 2017 13:05:39 -0500 (EST) |
User-agent: |
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:55.0) Gecko/20100101 Firefox/55.0 |
Follow-up Comment #20, bug #42561 (project octave):
After working on bug #52624, colors for trimesh objects seem to be nearly
correct. However, I think there may be an off-by-one error still present.
The following code shows the issue
close all
graphics_toolkit gnuplot
demo trimesh
colormap (jet (3));
h = copyobj (gcf);
graphics_toolkit (h, "fltk");
If you take a look at the figures you can see that, occasionally, one line
segment will be a different color. This might have to do with using fix(),
floor(), ceil(), or round() in the color computations. And I suppose it might
also be a difference between single (OpenGL) and doubles (gnuplot). But I'm
guessing there is something in __gnuplot_draw_axes__.m.
I've added png images of the two trimesh plots.
(file #42639, file #42640)
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Additional Item Attachment:
File name: trimesh.gnuplot.png Size:41 KB
File name: trimesh.fltk.png Size:46 KB
_______________________________________________________
Reply to this item at:
<http://savannah.gnu.org/bugs/?42561>
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- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh',
Rik <=
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Dan Sebald, 2017/12/13
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Rik, 2017/12/13
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Rik, 2017/12/13
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Rik, 2017/12/13
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Dan Sebald, 2017/12/13
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Rik, 2017/12/14
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Dan Sebald, 2017/12/14
- [Octave-bug-tracker] [bug #42561] gnuplot colors incorrect for 'demo trimesh', Rik, 2017/12/14