Re: Alignment issues of Time signature above the staff

[Kevin Barry]

Hi Chen,

I was able to solve the second of your problems (the whole bar rests
being shifted by the time signatures in the TimeSig context) by
adding:
\override TimeSignature.X-extent = ##f
(You could also use the value #'(0 . 0) if the warnings are off
putting, but I noticed that that doesn't *quite* fix it fully.)

I tried to reproduce your description of the first problem (time
signatures aligning over cue clefs), but even commenting out the
break-align-symbol override didn't make it appear. I was able to
correct the alignment of the first time signature by removing the
line:
\override TimeSignature.after-line-breaking = #shift-right-at-line-begin

After both of the above modifications everything looks OK to me, but
perhaps we need a fuller example.

Kevin

On Sat, 28 Mar 2020 at 10:30, Chen Leo <address@hidden> wrote:
>
> Hi, I am trying to put time signatures above the staffs according to 
> "http://lsr.dsi.unimi.it/LSR/Item?id=272";.
>
>
>
> I discovered an issue, that is whenever a clef change is made, the time 
> signature on the next bar fails to align to the bar line, it aligns to the 
> cue clef in the previous bar instead. After some research, I found out that 
> this is because the TimeSignature property "break-align-symbol" is set to 
> "##f". I set "break-align-symbol" back to "#'time-signature", and this 
> problem is solved, however, the horizontal alignments of the other time 
> signatures are messed up. (Using the code presented below, the 4/4 in the 
> first bar moves to the right & the bar rest on the third bar stretches to the 
> right. ) Are there any ways to align all the time signatures to their 
> corresponding bar lines without changing the alignments of other objects? 
> Thank you.
>
>
>
> \version "2.20.0"
>
>
>
> \layout {
>
>   \context {
>
>     \type "Engraver_group"
>
>     \consists "Time_signature_engraver"
>
>     \consists "Axis_group_engraver"
>
>     \name "TimeSig"
>
>     \alias "Staff"
>
>     \override TimeSignature.font-size = #4
>
>     \override TimeSignature.break-align-symbol = #'time-signature
>
>     \override TimeSignature.X-offset =
>
>       #ly:self-alignment-interface::x-aligned-on-self
>
>     \override TimeSignature.self-alignment-X = #LEFT
>
>     \override TimeSignature.after-line-breaking =
>
>       #shift-right-at-line-begin
>
>   }
>
>   \context {
>
>     \Score
>
>     \accepts TimeSig
>
>   }
>
>   \context {
>
>     \Staff
>
>     \remove "Time_signature_engraver"
>
>   }
>
> }
>
>
>
> timeSignatures = { \numericTimeSignature \time 4/4 s1 \time 3/8 s4. \time 3/4 
> s2. }
>
>
>
> \score {
>
>   <<
>
>     \new TimeSig \timeSignatures
>
>     \new Staff \relative c' { c4 ( d4 e4 f4 ) a4 ( g8 ) R2. }
>
>     \new Staff \relative c' { R1 R4. \clef bass a2. }
>
>     \new Staff \relative c' { R1 R4. R2. }
>
>   >>
>
> }
>
>