Hi... I'm trying to store a NoteHead's position (by using scheme
functions) to be abble to use this value after (as a string in a markup)...
To do that I define a variable (myvar with the string "init") and then I
use tweak to set! myvar to its new value...
But when I call myvar from a markup, it still finds the old argument
"init"...
Why?
Is it possible to do something like what I am trying to do in another way?
Thank you,
josé
code:
\version "2.13.22"
#(define myvar "init")
#(define (notehead-get-staffposition notehead)
;; notehead is grob
(ly:grob-property notehead 'staff-position))
#(define (change-myvar notehead)
;; notehead is grob
(let ((sp (ly:number->string (notehead-get-staffposition notehead))))
(format #t "~2&~a\n" (make-string 40 #\-))
(begin
(format #t "~a\n" sp)
(set! myvar sp))))
\relative c' {
c1^\markup{\text \myvar}
\once \override NoteHead #'before-line-breaking = #change-myvar
c
g^\markup{\text \myvar}
a^\markup{\text \myvar}
}
--
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