That didn't work.
Maybe you are using another incompatible version? I'm using version 2.12.1
But his seems so complicated to me that is better just edit the score in
inkscape or something.
2010/3/4 Neil Puttock <n.putt...@gmail.com>
> On 4 March 2010 18:39, Caio Barros <caio.bar...@gmail.com> wrote:
> > Ok, the grid lines seems to align with the NoteHeads, but how do I draw
> them
> > dashed?
>
> There's currently no support for dashed lines, but it's possible to
> force grid lines to use a dashed barline via a custom print callback:
>
> #(define-public (grid-line-dashed grob)
> (let ((elts (ly:grob-object grob 'elements)))
>
> (if (ly:grob-array? elts)
> (let ((common (ly:grob-common-refpoint-of-array grob elts Y))
> (iv empty-interval))
>
> (for-each (lambda (idx)
> (let ((point (ly:grob-array-ref elts idx)))
> (set! iv
> (interval-union
> iv (ly:grob-extent point common Y)))))
> (iota (ly:grob-array-length elts)))
>
> (if (interval-sane? iv)
> (let ((thick (* (ly:grob-property grob 'thickness 1)
> (ly:staff-symbol-line-thickness grob))))
>
> (set! iv (interval-translate
> iv (- (ly:grob-relative-coordinate grob common
> Y))))
> (set! (ly:grob-property grob 'bar-size) (interval-length
> iv))
> (set! (ly:grob-property grob 'glyph-name) "dashed")
> (ly:stencil-translate-axis
> (ly:bar-line::print grob)
> (- (+ (interval-length iv)
> (/ (ly:staff-symbol-staff-space grob) 2)))
> Y))
> empty-stencil))
> (begin
> (ly:grob-suicide! grob)
> '()))))
>
> \layout {
> \context {
> \Voice
> \consists "Grid_point_engraver"
> gridInterval = #(ly:make-moment 1 4)
>
> }
> \context {
> \Score
> \consists "Grid_line_span_engraver"
> \override GridLine #'stencil = #grid-line-dashed
> }
> }
>
> \score {
> \new ChoirStaff <<
> \new Staff \relative c'' {
> \stemUp
> c4. d8 e8 f g4
> }
> \new Staff \relative c {
> \clef bass
> \stemDown
> c4 g' f e
> }
> >>
> }
>
> Regards,
> Neil
>
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