On 2020-10-15 2:53 am, Andrew Bernard wrote:
Hi Matthew,
A good question. But I would have thought that margins are exactly
that - margins. I don't think LilyPond was ever conceived to support
marginal annotations and complex print formatting. Wouldn't you have
to narrow your content in whatever way so as to create left or right
vertical space and simply add it there, so, inside the margins? But I
am sure all the TeX experts on the list will chime in.
Nothing prevents you from \translating \markup outside the normal
bounds.
NOTE: The following code requires some helper functions in order to
specify absolute dimensions in \markup. A real-world usage probably
should be querying the values directly from \paper to eliminate
redundancy.
%%%%
\version "2.20.0"
#(define-markup-command
(abs-override layout props arg rest)
(pair? markup?)
(let* ((sym (car arg))
(val (cdr arg))
(scl (ly:output-def-lookup layout 'output-scale)))
(interpret-markup layout props
(markup #:override (cons sym (/ val scl)) rest))))
#(define-markup-command
(abs-translate layout props arg rest)
(pair? markup?)
(let* ((x (car arg))
(y (cdr arg))
(scl (ly:output-def-lookup layout 'output-scale)))
(interpret-markup layout props
(markup #:translate (cons (/ x scl) (/ y scl)) rest))))
\paper {
paper-width = 8\cm
paper-height = 5\cm
top-margin = 1\cm
bottom-margin = 1\cm
left-margin = 1.5\cm
right-margin = 2.5\cm
tagline = ##f
}
visualizeBounds =
#(define-scheme-function
(text)
(markup?)
#{
\markup
\override #'(thickness . 1.5)
\fill-line {
\overlay {
\lower #0.5 \draw-line #'(0 . 1)
\arrow-head #X #LEFT ##f
\draw-line #'(2 . 0)
}
#text
\overlay {
\lower #0.5 \draw-line #'(0 . 1)
\arrow-head #X #RIGHT ##f
\draw-line #'(-2 . 0)
}
}
#})
\markup \smaller \column {
\fill-line { paper: \concat { 5cm \char ##xd7 8cm } }
\fill-line { left-margin: 1.5cm }
\fill-line { right-margin: 2.5cm }
\vspace #0.5
}
\markup \overlay {
\abs-translate #(cons (ly:cm -1.5) 0)
\abs-override #(cons 'line-width (ly:cm 1.5))
\with-color #'(0.8 0.3 0.2)
\visualizeBounds left
\with-color #'(0.2 0.8 0.4)
\visualizeBounds normal
\abs-translate #(cons (ly:cm 4) 0)
\abs-override #(cons 'line-width (ly:cm 2.5))
\with-color #'(0.2 0.5 0.8)
\visualizeBounds right
}
%%%%
-- Aaron Hill
