Hello Ben,
Yes, that’s the solution I was looking for, thanks so much!
JM
> Le 14 nov. 2017 à 12:25, Ben <soundsfromso...@gmail.com> a écrit :
>
> On 11/14/2017 5:02 AM, Menu Jacques wrote:
>> Hello folks,
>>
>> MusicXML has the notion of curved tuplets brackets:
>>
>> <tuplet bracket="yes" line-shape="curved" number="1" type=«
>> start"/>
>>
>> Didn’t find anything in the doc nor snippets. How can that be achieved with
>> LilyPond?
>>
>> Thanks for your help!
>>
>> JM
>>
>>
>>
>
> Hi,
>
> Is this what you mean?
> (see attached)
>
> Also, what version are you using?
>
> Here is a 2.19 option:
>
> \version "2.19.80"
>
>
> tupletBracketToSlur = {
> % Use slur-stencil
> \override TupletBracket.stencil = #ly:slur::print
> %% Use 'thickness from Slur
> \override TupletBracket.thickness = #1.2
> %% 'control-points need to be set
> \override TupletBracket.control-points =
> #(lambda (grob)
> (let* ((x-pos (ly:grob-property grob 'X-positions))
> (pos (ly:grob-property grob 'positions))
> (x-ln (interval-length x-pos))
> (dir (ly:grob-property grob 'direction))
> ;; read out the height of the TupletBracket, may be
> ;; negative!
> (height (- (cdr pos) (car pos)))
> ;; height-corr is introduced because sometimes the shape
> ;; of the slur needs to be adjusted.
> ;; It is used in the 2nd/3rd control-point.
> ;; The value of 0.3 is found by trial and error
> (height-corr (* 0.3 dir height))
> (edge-height (ly:grob-property grob 'edge-height
> '(0.7 . 0.7)))
> (pad 1.0))
> (list
> ;; first cp
> (cons
> (+ (car x-pos) 0.5)
> (- (+ (* dir pad) (+ (car pos) (* -1 dir
> (car edge-height))))
> (if (= dir -1)
> (if (> height 3)
> (/ dir 2.0)
> 0.0)
> (if (< height -3)
> (/ dir 2.0)
> 0.0))))
> ;; second cp
> (cons
> (+ (car x-pos) (* x-ln 1/4))
> (+ (* dir pad) (+ (car pos) (* dir (+ 0.5 height-corr)))))
> ;; third cp
> (cons
> (+ (car x-pos) (* x-ln 3/4))
> (+ (* dir pad) (+ (cdr pos) (* dir (- 0.5 height-corr)))))
> ;; fourth cp
> (cons
> (- (cdr x-pos) 0.5)
> (+ (* dir pad) (+ (cdr pos) (* -1 dir (cdr edge-height)))))
> )))
> \override TupletBracket.staff-padding = #'()
> #(define (invert-direction x) (if (eq? UP
> (ly:tuplet-bracket::calc-direction x)) DOWN UP))
> \override TupletBracket.direction = #invert-direction
> }
>
>
> \layout { \tupletBracketToSlur }
>
> { a a \tuplet 3/2 { a8 a a } a4 }
> <curved.png>_______________________________________________
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