|
From: | kmg |
Subject: | Re: Custom parenthesize ignoring Staves? |
Date: | Sun, 16 Apr 2017 15:50:40 +0200 |
Hi Krzysztof ,
2017-04-15 20:11 GMT+02:00 kmg <address@hidden>: I'm pretty furious about that ...
> Hey, I'm working on re-typing some educational notes and I'm wondering if
> maybe someone had this problem and also came up with some Scheme to deal
> with this.
>
> http://i.imgur.com/T7z8Ty7.png - this is the source;
>
> http://i.imgur.com/IGocUKW.png - this is what I came up with (nevermind
> wrong notes)
>
> So, I'm basically using #parch scheme which I luckily found on german
> Lilypond forums (sadly seems to be down now)..
How about below (Hijacking GridPoint and GridLine)?
> scheme for it is the
> following:
>
> parch = #(define-music-function (parser location gap) (number?)
> #{
> \once \override Arpeggio.stencil = #(lambda (grob)
> (ly:stencil-add
> (ly:arpeggio::brew-chord-slur grob)
> (ly:stencil-translate-axis
> (ly:stencil-rotate (ly:arpeggio::brew-chord-slur grob) 180 0 0)
> gap X)))
> \once \override Arpeggio.X-extent = #(lambda (grob)
> (ly:stencil-extent (ly:arpeggio::brew-chord-slur grob) X))
> \once \override Arpeggio.positions = #(lambda (grob)
> (interval-widen (ly:arpeggio::calc-positions grob) 1.5))
> $(make-music 'EventChord 'elements (list (make-music 'ArpeggioEvent)))
> #})
>
> // usage: \parch #<distance of the right bracket>
>
> which I kinda made work by doing the chord on d# note with greater range,
> but with the upper note hidden, so the parenthese is not too small. However,
> if I make the chord with super low note, staff will stretch and it's not
> working.
>
> I've been thinking, would there be an easy way to do this? I already use
> handy Scheme for Box markup (http://lsr.di.unimi.it/LSR/Item?id=953 ). I
> think it's superior in the sense that you can place it basically anywhere
> and offset it like you want it. So there are no problems with having to do
> some gimmicks to make it work.
>
> Thought that chords will be trickier, but it seems that using harmony scheme
> from Repository and doing \center-column in \figuremode with markups does
> the job nicely.
>
> I sometimes wonder if it should be that tricky (I mean, having to learn
> Scheme to do some things).. but then, I wonder if such thing would be doable
> at all in other notation programs. .
>
> Anyway, thanks for your input guys and.. Happy Easter!
>
>
> Pozdrawiam,
> Krzysztof Gutowski
Usage should be clear from doc-string/comments/example. If not, ask back.
\version "2.19.56"
parentheses =
#(define-music-function (shorten-pair padding dir)
((pair? '(0 . 0)) number? ly:dir?)
"@var{dir} sets the opening/closing direction of the parentheses.
@var{padding} moves the parentheses in X-axis direction, recognized by the
spacing-engine. See limitations below, though.
The optional @var{shorten-pair} may be used to adjust the parentheses in
Y-axis direction.
The final parentheses will cover all Staffs of the current system.
Limitation:
Accidentals, dots, etc are not taken into account.
To avoid collisions adjusting @var{padding} neds to be done manually."
#{
\once \override Staff.GridPoint.X-offset = $padding
\once\override Score.GridLine.shorten-pair = $shorten-pair
\once \override Score.GridLine.stencil =
#(lambda (grob)
(let* ((stil (ly:grid-line-interface::print grob))
(stil-y-ext (ly:stencil-extent stil Y))
(thick (ly:grob-property grob 'thickness 0.1))
;; hijacking shorten-pair
(shorten-pair (ly:grob-property grob 'shorten-pair '(0 . 0)))
;; GridLine goes from the middle of top to bottom staff
;; Thus we extend it by 2 (the default staff-space) and add a
;; little extra over-shoot, i.e 0.5.
;; The new parentheses starts at '(- dir) in X-axis direction to
;; avoid collisions with preceding grobs
;; The values are tweakable via overrides for
;; Score.GridLine.shorten-pair.
;; TODO get staff-space from layout
(start
(cons (- dir)
(- (car stil-y-ext) 2.5 (- (car shorten-pair)))))
(stop
(cons (- dir)
(+ (cdr stil-y-ext) 2.5 (- (cdr shorten-pair)))))
;; see 'make-tie-stencil' from stencil.scm
(height-limit 0.7)
(ratio 0.33)
;; taken from bezier-bow.cc
(F0_1
(lambda (x) (* (/ 2 PI) (atan (* PI x 0.5)))))
(slur-height
(lambda (w h_inf r_0) (F0_1 (* (/ (* w r_0) h_inf) h_inf))))
(width (abs (- (cdr start) (cdr stop))))
(angularity 0.5)
(height (slur-height width height-limit ratio)))
(make-bow-stencil
start
stop
thick angularity height (- dir))))
#})
\layout {
\context {
\Staff
\consists "Grid_point_engraver"
%% adjust the value if needed
gridInterval = #(ly:make-moment 1/64)
}
\context {
\Score
\consists "Grid_line_span_engraver"
\override GridLine.stencil = ##f
}
}
\new StaffGroup
<<
\relative {
\parentheses #-2.5 #LEFT
cis''2
\parentheses #'(9 . 0) #-1.5 #LEFT
d
\parentheses #'(9 . 9) #-1.5 #LEFT
c
\parentheses #'(9 . 9) #2.5 #RIGHT
d
\parentheses #'(9 . 0) #2.5 #RIGHT
c
\parentheses #2.5 #RIGHT
d
}
\relative { c'' d c d c d }
\relative { c'' d c d c d }
>>
HTH and Happy Easter,
Harm
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