Hi Harm, Andrew--
On Mon, Mar 30, 2015 at 10:45 AM, Thomas Morley <thomasmorle...@gmail.com>
wrote:
> Hi Andrew,
>
> 2015-03-30 17:06 GMT+02:00 David Nalesnik <david.nales...@gmail.com>:
> > Hi Andrew,
> >
> > On Mon, Mar 30, 2015 at 9:11 AM, Andrew Bernard <
> andrew.bern...@gmail.com>
> > wrote:
> >>
> >> How can you move a tuplet number to a different position relative to the
> >> centre of the bracket, say 75% along rather than 50%?
> >>
> >> I can use X-offset for the TupletNumber, but this reveals the gap in the
> >> bracket that is the room for the number. How does one move that as well?
> >
> >
> > Sorry, I don't believe that this is possible in any convenient way. The
> > routine that draws the tuplet bracket simply puts the gap halfway along,
> > regardless of the number's position. Fixing this would involve patching
> the
> > C++ code.
> >
> > You could instead write a Scheme callback for TupletBracket.stencil which
> > would use the tuplet number's X-extent to determine the gap's position.
> > You'd of course have to reconstruct the bracket from scratch.
> >
> > --David
>
> not sure what you aim at. An example is always helpful, especially for
> a none native speaker like me. ;)
>
He's wanting to move the number along the bracket and have the gap go with
it. Right now the gap is always dead center.
>
> Though, maybe the following may help:
>
> \version "2.19.17"
>
> \relative c' {
> \override TupletNumber.Y-offset =
> #(lambda (grob)
> (let ((dir (ly:grob-property grob 'direction)))
> (+ (ly:tuplet-number::calc-y-offset grob)
> (* dir 0.75))))
>
> \override TupletNumber.X-extent = #empty-interval
>
> %\voiceTwo
> %\voiceOne
> \times 2/3 {
> c2 c c
> }
> }
>
Thanks, Harm--this gives me an idea! Draw an unbroken bracket as you do
above, then add a whiteout box to the TupletNumber:
\version "2.19.17"
\relative c' {
\override TupletNumber.X-extent = #empty-interval
\override TupletNumber.stencil =
#(lambda (grob)
(let* ((stil (ly:tuplet-number::print grob))
(stil-X (ly:stencil-extent stil X))
(stil-X (interval-widen stil-X 0.5))
(stil-Y (ly:stencil-extent stil Y))
(box (make-transparent-box-stencil stil-X stil-Y))
(whiteout (stencil-whiteout box)))
(ly:stencil-add whiteout stil)))
\offset X-offset 1 TupletNumber
\times 2/3 {
c2 c c
}
\offset X-offset -1 TupletNumber
\times 2/3 {
c2 c' e
}
}
%%
--David
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