2014-10-05 16:38 GMT+02:00 David Kastrup <d...@gnu.org>:
> Peter Crighton <petecrigh...@gmail.com> writes:
>
> > 2014-10-05 11:15 GMT+02:00 David Kastrup <d...@gnu.org>:
> >
> >> Simon Albrecht <simon.albre...@mail.de> writes:
> >>
> >> > Am 04.10.2014 um 23:13 schrieb Peter Crighton:
> >> >> As you can see in the following code and the attached image, there
> >> >> is a possible bug when using \RemoveEmptyStaves with voices in
> >> >> different keys (such as in a score with transposing instruments):
> >> >> key signatures appearing only in hidden empty staves are still
> >> >> causing space in the shown staves.
> >> >>
> >> >> I don’t think this is as it should be. How can I correct this? And
> >> >> should it be filed as a bug report, or is there some intention
> >> >> behind this appearance?
> >> > I quite agree that this is likely a bug (or at least: unexpected
> >> > behaviour which should be enhanced).
> >>
> >> It is not unexpected behavior. \RemoveEmptyStaves can only work after
> >> the line breaks are known and the line breaks are the result of
> >> horizontal spacing.
> >>
> >> Basically you'd need to redo all of the horizontal spacing after stuff
> >> like \RemoveEmptyStaves have run without changing the line breaking
> >> again if you find out that this gives you more space to work with.
> >>
> >> Unlikely to happen in the next few years of LilyPond development.
> >
> >
> > Okay, thanks for explaining. For now I am content with using “\omit
> > Staff.KeySignature” and “\revert Staff.KeySignature.stencil” respectively
> > to get rid of the problem.
> >
> > What I found strange, though, was that in my score the problem only
> > appeared when there was a time signature change at the beginning of the
> > line. I couldn’t reproduce this in a minimal example.
>
> Huh. Maybe LilyPond _does_ set the line/horizontal spacing fresh after
> determining the break points. But things like key/time signature
> changes are repeated on the _previous_ line. And maybe it's too late to
> redo the line spacing on _that_?
>
> You can try creating a minimal example with multiple lines by manually
> placing breaks with \break.
I know, what I meant was that in my minimal example the problem appears in
every line, not only those with a time signature change.
\version "2.19.13"
<<
\new Staff <<
\relative c'' {
c1 \break
c2.
c \break
c1
c
}
>>
\new Staff \with {
\RemoveEmptyStaves
} <<
{
\key d \major
R1 \break
\time 3/4
R2. \break
R2.
\key c \major
\time 4/4
R1 \break
R1
}
>>
>>
--
Peter Crighton | Musician & Music Engraver based in Mainz, Germany
http://www.petercrighton.de
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