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[Octave-bug-tracker] [bug #43447] trisurf produces misplaced vertical li
From: |
Avinoam Kalma |
Subject: |
[Octave-bug-tracker] [bug #43447] trisurf produces misplaced vertical line |
Date: |
Tue, 23 Dec 2014 21:23:22 +0000 |
User-agent: |
Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/39.0.2171.95 Safari/537.36 |
Follow-up Comment #13, bug #43447 (project octave):
Hi,
the coloring difference is becuase of colormap change
(lines 1633-174) in __go_draw_axes__.m
if (length (cmap) > 0)
fprintf (plot_stream,
"set palette positive color model RGB maxcolors %i;n",
cmap_sz);
fprintf (plot_stream,
"set palette file "-" binary record=%d using 1:2:3:4;n",
cmap_sz);
fwrite (plot_stream, [1:cmap_sz; cmap.'], "float32");
fwrite (plot_stream, "n");
endif
if you comment them out, you will get the same coloring as in fltk.
The misplaced vertical line is actually not misplaced, but a
vertical line gnuplot add in 3D image. For examples:
f = @(x,y) exp(-x.*x-y.*y);
ezmesh (f, [-1, 1]);
gnuplot draws the frontal horizontal line, from
(-1,-1,0) to (-1,-1,exp(-0.02)).
with fltk you will not see this line.
Avinoam
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