Re: Specific large "watermark" time signature

[Urs Liska]

Hi Malte,

thanks for your suggestions.


Am 11.08.2016 um 13:09 schrieb Malte Meyn:
>
>
> Am 11.08.2016 um 09:54 schrieb Urs Liska:
>> manually editing Y-offset doesn't
>> seem like a good idea, as I don't have the impression there's an easy
>> relation that could be set up between font-size and Y-offset.
>
> There is such a relation: The time signature in the Score context is
> aligned to the top of the Score, in this case it’s the top of the
> treble clef. So one has to offset by 1.75 (approximate height of
> treble clef above the Staff) and two staff spaces scaled by font-size
> (because a time signature digit is two staff spaces tall). See first
> example below. This might break when there are other things that go
> above the treble clef.

This is interesting but of course completely unreliable: it will break
with any item going over the treble clef (e.g. a \tempo or a \mark).

>
> Alternatively you can print the time signature in the topmost staff
> (if you never remove it by \RemoveEmptyStaves) and set it’s Y-extent
> to empty. See second example below.

This works out perfectly, thank you.

>
> Concerning your second wish in the comments: You can put \consists and
> \remove into the \layout { \context { … } } blocks so you don’t have
> to use \with.

I had already figured that out before you replied. Unfortunately this
doesn't work out if you for example want to have the time signature
printed at every staff group. However, I found the way to do it: wrap
the context mod in a function, remove all time signatures by default and
apply the function to whichever staff should print the time signature.
See the attached files..

Best
Urs

>
> %%%%%%%%%%%%%%%%%%%%% FIRST EXAMPLE
>
> \version "2.19.46"
>
> \layout {
>   tsfs = 15.3 % time signature font size
>   \context {
>     \Score
>     \consists Time_signature_engraver
>     \override TimeSignature.font-size = \tsfs
>     \override TimeSignature.X-extent = #'(0 . 0)
>     \override TimeSignature.space-alist.first-note = #'(fixed-space . 0)
>     \override TimeSignature.color = #'(0.8 0.8 0.9)
>     \override TimeSignature.layer = -1
>     \override TimeSignature.Y-offset =
>     #(-
>       (* -2 (magstep tsfs)) ; two staff spaces = one digit height
>       1.75) % height of treble clef above topmost staff line
>   }
>   \context {
>     \Staff
>     \remove Time_signature_engraver
>   }
> }
>
> \score {
>   \new StaffGroup <<
>     \new GrandStaff <<
>       \new Staff \relative c' {
>         \time 7/4
>         c1 c2.
>         \time 5/4
>         c2. c2
>       }
>       \new Staff \relative c {
>         \clef bass
>         c1 c2.
>         c2. c2
>       }
>     >>
>     \new Staff \relative c'' {
>       c1 c2. c2. c2
>     }
>   >>
> }
>
> %%%%%%%%%%%%%%%%%%%%% SECOND EXAMPLE
>
> \version "2.19.46"
>
> tsfs = 15.3 % time signature font size
>
> \layout {
>   \context {
>     \Staff
>     \remove Time_signature_engraver
>   }
> }
>
> \score {
>   \new StaffGroup <<
>     \new GrandStaff <<
>       \new Staff \with {
>         \consists Time_signature_engraver
>         \override TimeSignature.font-size = \tsfs
>         \override TimeSignature.X-extent = #'(0 . 0)
>         \override TimeSignature.space-alist.first-note =
> #'(fixed-space . 0)
>         \override TimeSignature.color = #'(0.8 0.8 0.9)
>         \override TimeSignature.layer = -1
>         \override TimeSignature.Y-offset =
>         #(-
>           2 ; 2 staff spaces because it’s normally center-aligned
>           (* 2 (magstep tsfs))) % two staff spaces = one digit height
>         \override TimeSignature.Y-extent = #'(+inf.0 . -inf.0)
>       }\relative c' {
>         \time 7/4
>         c1 c2.
>         \time 5/4
>         c2. c2
>       }
>       \new Staff \relative c {
>         \clef bass
>         c1 c2.
>         c2. c2
>       }
>     >>
>     \new Staff \relative c'' {
>       c1 c2. c2. c2
>     }
>   >>
> }
>
> %%%%%%%%%%%%%%%%%%%%% END
>
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watermark-timesig.ily
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watermark-timesig.ly
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