Comment #1 on issue 3383 by [email protected]: old-straight-flag +
smaller Stem.thickness gives no output and huge over
http://code.google.com/p/lilypond/issues/detail?id=3383
This went wrong with the patch for issue 3161. I reduced the example to
one stem and flag, and see that the problem is when the tip of the stem is
exactly at a corner of the flag.
Probably something in an intersection-finding algorithm is wrong, in the
code that merges the skylines. There are points with Y-coordinates of
128.000 in the merged skyline, hinting at a 0.0/0.0 division.
If the code before the issue 3161 patch avoided this, it seems it was by
removing the just-one-point 'building' where the flag protrudes (by zero
distance) from the tip of the stem.
\layout {
\context {
\Staff
\override TimeSignature #'stencil = ##f
\override Clef #'stencil = ##f
\override NoteHead #'stencil = #point-stencil
\override StaffSymbol #'stencil = ##f
} \context {
\Score
\override Stem.thickness = #1.20000000
\override Flag.stencil = #old-straight-flag
} }
{ d'8 }
#(ly:set-option 'debug-skylines)
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