Re: How can I adjust length-fraction of tremolo on beamed stem?

[Thomas Morley]

2018-04-25 8:05 GMT+02:00 takumi ikeda <address@hidden>:
> \version "2.19.61"
>
> {
>   \override Stem.length = #10
>   \override StemTremolo.beam-thickness = #0.3
>   \override StemTremolo.slope = #0.2
>   \override StemTremolo.beam-width = #1.5
>   \override StemTremolo.extra-offset = #'(0 . 1)
>   \override StemTremolo.length-fraction = #0.7     %% not works on the beams.
>   %\override Beam.length-fraction = #0.7     %% would like to adjust
> only tremolo, not beams.
>   c''4:64 c''8.:64 c''16:64
> }
>
> % Thanks,
> % Takumi



Does below help already?

\version "2.19.81"

tst =
#(define-music-function (y)(number?)
#{
  \override StemTremolo.after-line-breaking =
  #(lambda (grob)
    (let* ((y-off (ly:grob-property grob 'Y-offset))
           (dir (ly:grob-property grob 'direction)))
      (ly:grob-set-property! grob 'Y-offset (+ y-off (* y dir)))))
#})

{
  \override Stem.length = #10
  \tst -0.5
  c''4:64 c''8.:64 c''32:128 c''32:128
}


Cheers,
  Harm