On Wed, Dec 21, 2022 at 3:09 AM Jean Abou Samra <[email protected]> wrote:
> Le 21/12/2022 à 01:26, Abraham Lee a écrit :
> > Is there a way to turn the stencil into a composite of the original
> > with a big block of whiteout that follows the entire group's outer
> > skyline so it hides the staff lines? Would be a nice feature, IMO. I
> > know the stems can be "frenched", but would be cool if the staff lines
> > could be instead.
>
>
>
> This has become somewhat easier to do in 2.24 with the new skyline
> functions.
>
> \version "2.24"
>
> \layout {
> #(use-modules (ice-9 match)
> (srfi srfi-1))
> \context {
> \Score
> \override Beam.stencil =
> #(grob-transformer
> 'stencil
> (lambda (grob orig)
> (define (sanitize lst)
> (filter (match-lambda ((x . y) (and (finite? x) (finite? y))))
> lst))
> (match-let* (((down . up) (ly:skylines-for-stencil orig X))
> (down-points (sanitize (ly:skyline->points down
> X)))
> (up-points (sanitize (ly:skyline->points up X))))
> (ly:stencil-add
> (stencil-with-color
> (ly:round-polygon
> (append-reverse down-points up-points)
> 0.0)
> "white")
> orig))))
> \override Stem.layer = 10
> }
> }
>
> \language "english"
>
> \relative {
> \clef bass
> \time 4/4
> f8 g16 a b c df e f e df c b a g f |
> e8 f16 g a b c df e df c b a g f e |
> }
>
This is so cool! I am definitely going to have to try this out on more
complicated stuff to see what I think. Could be my new go-to!
I have tried and tried (using after-line-breaking, yes I know, I shouldn't
abuse that anymore...), but my Scheme chops are just not this good. All
your recent solutions have me in awe. I definitely need more understanding
of what you've done here. I've had many other ideas that I've wanted to
implement, but never succeeded at.
Thanks for giving me hope,
Abraham
