Re: Dashed bar lines fail requirements at some sizes

Hi,

thanks for your report.
Apart from the last point (see below), it's mostly caused by:

commit cff90246a32186f450bab1f8cd415d320b8c0cf2
Author: Thomas Morley <[email protected]>
Date:   Wed Oct 4 16:18:30 2023 +0200

    Dashed bar lines do not stick out

    Give BarLine a little less, SpanBar a little more height.
    As a result they overlap inside of a staff symbol line.

    Closes #6666

Embarrassingly...

I'll take a closer look soon.

Am Di., 20. Feb. 2024 um 20:17 Uhr schrieb Cameron Crowe via
bug-lilypond <[email protected]>:
>
> A few potential bugs to consider. Much appreciation!
>
> % 1. Dashed bar lines fail requirement at some sizes:
> % > The dashes in a dashed bar line covers staff lines exactly. Dashed bar
> % > lines between staves start and end on a half dash precisely.
>
> \version "2.24.3"
> #(set-global-staff-size 10)
>
> % Top missing
> \relative { d' \bar "!" }
>
> % Tiny and centered
> \score {
> \relative { d' \bar "!" }
> \layout { #(layout-set-staff-size 33) }
> }
>
> % 2. Dashed bar line appearance affected by global staff size even
> % when layout staff size fixed. Compare A and B:
>
> % A
> \version "2.24.3"
>
> #(set-global-staff-size 10)\score {
> \relative { d' \bar "!" }
> \layout { #(layout-set-staff-size 33) }
> }
>
> % B
> \version "2.24.3"
>
> \score {
> \relative { d' \bar "!" }
> \layout { #(layout-set-staff-size 33) }}
>

> % 3. Cannot end score with all bar line styles.
>
> \version "2.24.3"
> \relative { d' \bar ":" }
> \relative { d' \bar ".|" }

":" is not a predefined bar-line, i.e no bar-line is printed.
".|" has a #f-setting for line-end, i.e. no bar-line will happen there.
Thus, both are no bugs.

Cheers,
  Harm