Hi Leonid,
Regarding your last request:
Le 20/11/2021 à 03:17, Leonid Hrabovsky a écrit :
3) I see (=guess) that tweaking with numerical data of the
/squiggleLine/ (in order to enlarge it strictly proportionally when
preserving its angles and/or curvatures) will create the two types of
horizontal lines I need. But I also need the third line that shall
look like a tight chain of repeated organ pedal symbols (the arches).
So is there a way of building such a line? Maybe by building a small
semicircle and then multiplying it as a variable?
Do you mean something like this?
\version "2.22.1"
#(define-markup-command (draw-horizontal-arches layout props len) (number?)
#:properties ((thickness 0.1)
(arch-length 5)
(arch-height 1.5)
(angularity 0.2)
path-markup)
(interpret-markup
layout
props
(make-path-markup
thickness
(let loop ((x-pos 0.0)
(path-acc '()))
(if (> x-pos len)
(reverse! path-acc)
(loop (+ x-pos arch-length)
(cons
`(rcurveto ,(* 1/2 angularity arch-length)
,(- arch-height)
,(- arch-length (* 1/2 angularity
arch-length))
,(- arch-height)
,arch-length
0)
path-acc)))))))
\markup \draw-horizontal-arches #20
\markup \override #'((thickness . 0.2)
(arch-length . 10)
(arch-height . 3)
(angularity . 0.8))
\draw-horizontal-arches #20
Best regards,
Jean
