2014-05-21 11:24 GMT+02:00 Urs Liska <[email protected]>:
> for analysis purposes I'd like to draw (e.g.) boxes around objects on
> different staves (see attachment).
> Is there a straightforward and particularly robust way to do that with
> LilyPond itself (the image was postprocessed)?
>
>
Hi Urs,
I have nothing miraculous nor elegant but I think that two half boxes offer
some flexibility (if that could bring some inspiration).
See enclosed.
HTH,
Pierre
\version "2.18.2"
halfBoxUp = {
\once\override TextSpanner.style = #'line
\once\override TextSpanner.thickness = #2
\once\override TextSpanner.to-barline = ##t
\once\override TextSpanner.bound-details =
#`((left
(text . ,#{ \markup {
\override #'(thickness . 2)
\draw-line #'(0 . -9)
} #})
(Y . 0)
(padding . -1.5))
(right
(text . ,#{ \markup {
\override #'(thickness . 2)
\draw-line #'(0 . -9) } #})
(Y . 0)
(padding . -1.5)))
}
halfBoxDown = {
\once\textSpannerDown
\once\override TextSpanner.style = #'line
\once\override TextSpanner.thickness = #2
\once\override TextSpanner.to-barline = ##t
\once\override TextSpanner.bound-details =
#`((left
(text . ,#{ \markup {
\override #'(thickness . 2)
\draw-line #'(0 . 9)
} #})
(Y . 0)
(padding . -1.5))
(right
(text . ,#{ \markup {
\override #'(thickness . 2)
\draw-line #'(0 . 9) } #})
(Y . 0)
(padding . -1.5)))
}
<<
\new Staff
\relative c'' {
c4 \halfBoxUp
c8*2 -\tweak #'extra-offset #'(0 . -8) % this tweak to set half box joints if needed
\startTextSpan c \stopTextSpan c4 |
}
\new Staff
\relative c' {
c4 \halfBoxDown
c -\tweak #'extra-offset #'(0 . 8) % this tweak to set half box joints if needed
\startTextSpan c \stopTextSpan c |
}
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