Re: bar number alignment

[Aaron Hill]

On 2019-05-25 2:58 pm, Pierre Perol-Schneider wrote:
> Hi,
> On the french list a user would like to get bar numbers -- every 3 bars 
> --
> center aligned exept when systems start.
> Is there a way, such as \alterBroken for spanners, that could help ?
> Snippet (with \alterBroken just as an example):
>
> \version "2.21.0"
> {
>   \override Score.BarNumber.break-visibility = ##(#t #t #t)
>   \set Score.barNumberVisibility = #(every-nth-bar-number-visible 3)
>   \override Score.BarNumber.stencil = #(make-stencil-circler 0.1 0.25
> ly:text-interface::print)
>   \override Score.BarNumber.self-alignment-X = 0
>
>   %% wanted:
>   %\alterBroken self-alignment-X #(list 0 1) Score.BarNumber
>
>   \set Score.currentBarNumber = 1111
>   \repeat unfold 50 c'1
> }

Would something like this help?

%%%%
  \override Score.BarNumber.self-alignment-X =
    #(lambda (grob) (- (ly:item-break-dir grob)))
%%%%


-- Aaron Hill