[Lilypond-auto] Issue 3659 in lilypond: ugly beams when staff change

[lilypond]

Status: Accepted
Owner: ----
Labels: Type-Ugly

New issue 3659 by address@hidden: ugly beams when staff change
http://code.google.com/p/lilypond/issues/detail?id=3659

Reported by Gilberto Agostinho
http://lists.gnu.org/archive/html/bug-lilypond/2013-11/msg00029.html

When using \autochange, the slope of the beams look ugly against the staff
lines:

\version "2.17.29"

\markup { When using autochange:}
\markup { Not perfectly horizontal beams, conflicting with staff lines}
\new PianoStaff {
  \autochange \relative c' {
    \time 2/4
    gis16 c,,32 e'' f cis, d16
    d'16 c b32 bes d c
    \bar "|."
  }
}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\markup { Without autochange:}
\markup { Nice looking beams that fit perfectly with staff lines}
\new PianoStaff << {
    \relative c' {
    \time 2/4
    gis16 c,,32 e'' f cis, d16
    d'16 c b32 bes d c
    \bar "|."
  }
}
{
  \time 2/4
  s4 s
}


The code above outputs:

<http://lilypond.1069038.n5.nabble.com/file/n153470/beams.png>

And here is an enlargement of the top staff in image above, where the ugly
"white triangles" created between the beams and the staff line can be more
clearly seen:

<http://lilypond.1069038.n5.nabble.com/file/n153470/beams2.png>

Comment by David Nalesnik:
It's not specifically a problem with \autochange.  You get the same
behavior with manual staff changes


Attachments:
        beams.png  34.0 KB
        beams2.png  10.6 KB

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