Adjusting slur positions vertically: Difference between revisions
m Replace version="2.24.0" with version="2.24" now that the LilyWiki extension supports auto-selecting the latest release in a stable series |
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The code in this snippet allows you to tweak the vertical start and end positions by specifying ''relative'' changes, similar to <code>\offset</code>. | The code in this snippet allows you to tweak the vertical start and end positions by specifying ''relative'' changes, similar to <code>\offset</code>. | ||
Syntax: <code>\offsetPositions #'(< | Syntax: <code>\offsetPositions #'(<var>dy1</var> . <var>dy2</var>)</code> | ||
<lilypond version="2.24"> | <lilypond version="2.24"> | ||
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[[Category:Scheme]] | [[Category:Scheme]] | ||
[[Category:Included in the official documentation]] | [[Category:Included in the official documentation]] | ||
[[Category:Snippet]] | |||
Latest revision as of 23:33, 21 November 2025
Using \override Slur.positions it is possible to set the vertical position of the start and end points of a slur to absolute values (or rather, forcing LilyPond's slur algorithm to consider these values as desired). In many cases, this means a lot of trial and error until good values are found. You probably have tried the \offset command next just to find out that it doesn't work for slurs, emitting a warning instead.
The code in this snippet allows you to tweak the vertical start and end positions by specifying relative changes, similar to \offset.
Syntax: \offsetPositions #'(dy1 . dy2)
\version "2.24"
offsetPositions =
#(define-music-function (offsets) (number-pair?)
#{
\once \override Slur.control-points =
#(lambda (grob)
(match-let ((((_ . y1) _ _ (_ . y2))
(ly:slur::calc-control-points grob))
((off1 . off2) offsets))
(set! (ly:grob-property grob 'positions)
(cons (+ y1 off1) (+ y2 off2)))
(ly:slur::calc-control-points grob)))
#})
\relative c'' {
c4(^"default" c, d2)
\offsetPositions #'(0 . 1)
c'4(^"(0 . 1)" c, d2)
\offsetPositions #'(0 . 2)
c'4(^"(0 . 2)" c, d2)
\bar "||"
g4(^"default" a d'2)
\offsetPositions #'(1 . 0)
g,,4(^"(1 . 0)" a d'2)
\offsetPositions #'(2 . 0)
g,,4(^"(2 . 0)" a d'2)
}
