Hi Kevin,
Thank you for your reply. But the part of "(if (= UP dir) -0.5 0.5)"
seems to not working...
BTW, How can I learn the syntax like "(ly:duration-log
(ly:music-property music 'duration))"? I found the documentation
lilypond.org/doc/v2.19/Documentation/internals/scheme-functions but it
says only "Function: ly:duration-log dur". Is "dur" an data type?
Where is the reference of "dur"?
2015-02-12 22:13 GMT+09:00 Kevin Barry <barr...@gmail.com>:
> 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 <i...@de-dicto.net> 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:
>> }
>>
>> _______________________________________________
>> lilypond-user mailing list
>> lilypond-user@gnu.org
>> https://lists.gnu.org/mailman/listinfo/lilypond-user
>
>
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