Hi Takumi,
Is this what you want?
\version "2.18.2"
tremps = #"
2 setlinewidth
0.07 0.07 scale
-10 7 moveto
-5 3 5 3 10 7 curveto
-10 -7 lineto
-5 -3 5 -3 10 -7 curveto
stroke
"
z-trem =
#(define-music-function (parser location music) (ly:music?)
#{
\override StemTremolo.stencil =
#(lambda (grob)
(let* (
(dur-log (ly:duration-log (ly:music-property music
'duration)))
(dir (ly:grob-property grob 'direction))
)
(grob-interpret-markup grob
(markup
(
#:translate (cons 0 (if (= 0 dur-log)
0
(if (= UP dir) -0.5 0.5)))
#:postscript tremps
)
)
)
)
)
$music
#}
)
\new Staff {
\z-trem
c'1:32 c''8: f'16: g': c''8: c'4: c''16:
}
On Thu, Feb 12, 2015 at 12:44 PM, takumi ikeda <[email protected]> wrote:
> Hello all,
>
> I am trying the following code but I got "Wrong type: ()" error.
> I would like to avoid translating tremolos when the note is whole note.
> Writing Scheme is quite difficult for me. Any help would be appreciated.
>
> Takumi
>
> >>
>
> \version "2.18.2"
>
> tremps = #"
> 2 setlinewidth
> 0.07 0.07 scale
> -10 7 moveto
> -5 3 5 3 10 7 curveto
> -10 -7 lineto
> -5 -3 5 -3 10 -7 curveto
> stroke
> "
>
> z-trem =
> #(define-music-function (parser location music) (ly:music?)
> #{
> \override StemTremolo.stencil =
> #(lambda (grob)
> (let* (
> (dur-log (ly:grob-property grob 'duration-log))
> (dir (ly:grob-property grob 'direction))
> )
> (grob-interpret-markup grob
> (markup
> (
> #:translate (cons 0 (if (= 0 dur-log) 0
> (if (= UP dir) -0.5 0.5)))
> #:postscript tremps
> )
> )
> )
> )
> )
> $music
> #}
> )
>
>
> \new Staff {
> \z-trem
> c'1:32 c''8: f'16: g': c''8: c'4: c''16:
> }
>
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>
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