[Octave-bug-tracker] [bug #44181] Tesselation lines visible in plot output of patches

[Dan Sebald]

Follow-up Comment #11, bug #44181 (project octave):

Sorry, it IS aliasing, not some bogus line.  I installed Inskape, generated
the patch demo figure as an SVG and loaded it into Inskape.  After ungrouping
all objects to their minimum I could slide one of the slices around and create
all kinds of visual effects.  (See attached Screenshot-test_gl2ps.svg -
Inkscape.png.)

SVG is aliasing in Inkscape.  GV on the postscript file does a good job.  But
ps2pdf creates aliasing.  I printed the PS file directly to my HP Laserjet
2200 and see only one aliasing line, but it's very visible.

OpenGL on the terminal screen looks good, but we aren't sure that is drawn
with triangles.  Using gnuplot graphics toolkit, I sent the patch demo to
gnuplot's Qt terminal and saved the file as an SVG.  Loading that into
Inkscape and ungrouping only got so far as the blue hexadecagon, i.e.,
apparently no triangles.  (See attached Screenshot-test_gnuplotqt.svg -
Inkscape-1.png.)

Could be gl2ps, just a guess.


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