Hi Andrew, hi Aaron,
Yep (also for future archive searchers) I can confirm that the right margin
overrun results from the Lily default that glissando aren't breakable, as
Aaron identifies.
It should be enough to include just ...
\override Score.Glissando.breakable = ##t
... to prevent this one particular instance of right margin overrun.
There are, of course, other conditions that can also cause right margin
overrun. Jean Bréfort pointed to barline-crossing durations earlier in this
thread, which can also cause right margin overrun. If you *want*
barline-crossing durations (complexism or music before 1600) then you need
to remove Lily's Forbid_line_break_engraver from every voice context in
which barline-crossing durations occur. Something like ...
\context {
\Voice
\remove Forbid_line_break_engraver
}
... does the trick for all voices in your score.
Andrew, if you're engraving a lot of complexist music, I suggest removing
the Forbid_line_break_engraver as a matter of course.
Trevor.
On Sat, Jan 19, 2019 at 7:13 PM Aaron Hill <lilyp...@hillvisions.com> wrote:
> On 2019-01-19 4:56 pm, Andrew Bernard wrote:
> > Problem solved after much deconstruction.
> >
> > I am setting a string quartet. In this section almost every note has a
> > glissando, and some become to small to see. So I set this:
> >
> > \override Glissando #'minimum-length = #5
> > \override Glissando #'springs-and-rods =
> > #ly:spanner::set-spacing-rods
> >
> > This works fine to give the minimum length of the glissandi. It turns
> > out
> > that this was forcing the score over the edge of the paper, not a
> > rhythmic
> > error. Adjusting that solves the problem. It's only when there are a
> > large
> > number of glissandi in the line that it occurs. I report this here in
> > case
> > it may help future archive searchers.
>
> This is probably because glissandi are unbreakable by default. If you
> have one overlapping a bar line, then LilyPond cannot break there.
>
> Consider the following:
>
> %%%%
> \version "2.19.82"
> {
> \override Glissando.minimum-length = #5
> \override Glissando.springs-and-rods = #ly:spanner::set-spacing-rods
> \override Glissando.breakable = ##t
> \repeat unfold 32 { f'8\glissando e''8\glissando } f'1
> }
> %%%%
>
> If you omit setting 'breakable to true, you'll see the result extends
> all on one line.
>
> -- Aaron Hill
>
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>
--
Trevor Bača
www.trevorbaca.com
soundcloud.com/trevorbaca
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