Re: Advanced note column handling…

[Simon Albrecht]

Am 01.09.2015 um 14:15 schrieb Michael Gerdau:
> Dear Simon,
>
> > in a Mendelssohn score I encountered a problem on which I’m biting my
> > teeth off. Have a look at the attachments – that’s easier than making
> > many words. As you can imagine, the span stem should connect the two
> > middle voices and the top two voices not collide (no matter in which
> > direction), but I couldn’t yet figure out how: no combination of
> > NoteColumn.force-hshift and NoteColumn.ignore-collision that I tried
> > gave the intended result.
> At least optically I can trick the collision away...
Thanks, that’s a good workaround. Looks like there’s room for 
improvement in the #Span_stem_engraver…

Best regards, Simon
> %%%%%%%%%%%%%%
> \version "2.19.25"
>
> \score {
>    \new PianoStaff \with { \consists #Span_stem_engraver }
>    <<
>      \new Staff
>      <<
>        \repeat tremolo 4 {
>          a'16 bes'16
>        }
>        \\
>        {
>          \voiceFour \crossStaff {
>            % With this override, the span stem is correct,
>            % but the first and second voices collide…
>            %\override NoteColumn.ignore-collision = ##t
>            \once \override NoteColumn.force-hshift = #0.5 \once \override
> Stem.length = #12 <g' e'>4.
>          }
>        }
>      >>
>      \new Staff
>      <<
>        \clef bass
>        { \voiceFour \once \override NoteColumn.force-hshift = #1 cis'4. }
>        \\
>        { \voiceTwo a,2 }
>      >>
>    >>
> }
> %%%%%%%%%%%%%%