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Re: Beam/Stem misattached (v2.8.4)

From: Joe Neeman
Subject: Re: Beam/Stem misattached (v2.8.4)
Date: Wed, 07 Jun 2006 16:32:21 +1000

On Tue, 2006-06-06 at 15:02 +0200, Thies Albrecht wrote:
> Hi everyone!
> Like I posted before 
> (http://lists.gnu.org/archive/html/bug-lilypond/2006-02/msg00078.html) 
> and Daniel also reported 
> (http://lists.gnu.org/archive/html/bug-lilypond/2006-04/msg00111.html) 
> beams and stems sometimes get misaligned when Y-extent of staff is set. 
> Daniel and me were the only users to get this error. There wasn't any 
> solution found.
> After I installed Ubuntu Dapper Drake and latest version of Lilypond I 
> still get misaligned stems. The code
> \score {
>     \new Staff {
>        \override Staff.VerticalAxisGroup #'Y-extent = #'(-5.0 . 5.0)
>        \relative c'' {f,8 g f e c d as b g' as g fis c d c b}
>     }
> }
> produces the result attached as Result.png.
> What I just found out while writing this eMail is the following:
> Using 'lilypond -V test.ly ' on the code above doesn't show misaligned 
> stems (see Result-V.png).

That's very interesting. I _suspect_ that this may be another error
related to grob ordering (which would explain it being hard to
reproduce). Does the following still have the problem?

\score {
    \new Staff {
       \override Staff.VerticalAxisGroup #'Y-extent =
        #(lambda (g)
            (ly:axis-group-interface::height g)
            '(-5.0 . 5.0)))
       \relative c'' {f,8 g f e c d as b g' as g fis c d c b}

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