Hello, I'm trying to increase the overall size of a given staff, as described
in the docs[1] using:
\new Staff \with {
fontSize = #2
\override StaffSymbol #'staff-space = #(magstep 2)
\override NoteHead #'before-line-breaking = \TwinNoteNoteHeads
}
But I'm also using custom note head shapes, with an override that references a
scheme function that alters the NoteHead stencil and stem-attachment
properties.
That is preventing the resizing of the note heads. They just stay the same as
the rest of the staff, stems, clefs, etc, become larger. (This may be related
to using "before-line-breaking", but I need to use that to get the horizontal
spacing to work properly.[2] )
I have tried various things (including putting the size adjustments in the
\layout block [3]) and the only thing I've found that will change the size of
the noteheads is using set-global-staff-size [3]. But that also increases the
size of all the text (lyrics, chord names, titles, etc), when I just want to
increase the size of the staff, not the text.
Anyone know how to get this to work? Any advice or pointers would be greatly
appreciated. I realize that this is non-standard stuff, but LilyPond has been
amazing at handling whatever I've thrown at it, making it possible to
experiment. A simplified version of my code is below.
Thanks!
-Paul
[1] http://www.lilypond.org/doc/v2.15/Documentation/learning/size-of-objects
[2] http://lists.gnu.org/archive/html/lilypond-user/2012-04/msg00145.html
[3]
http://lilypond.org/doc/v2.12/Documentation/user/lilypond/Setting-the-staff-size
\version "2.16.0"
%%%% Begin TwinNote scripts
%%%% Customize note head stencils based on pitch
upTriangle =
#(ly:make-stencil
(list 'embedded-ps
"gsave
currentpoint translate
newpath
-.1875 -.5 moveto
.65625 .5 lineto
1.5 -.5 lineto
closepath
fill
grestore" )
(cons -.1875 1.5)
(cons -.5 .5)
)
downTriangle =
#(ly:make-stencil
(list 'embedded-ps
"gsave
currentpoint translate
newpath
.08 .34 moveto
.65625 -.4 lineto
1.2325 .34 lineto
closepath
0.12 setlinewidth
stroke
newpath
-.0775 .43 moveto
.65625 -.43 lineto
1.39 .43 lineto
closepath
0.1 setlinewidth
stroke
newpath
-.1675 .48 moveto
.65625 -.48 lineto
1.48 .48 lineto
closepath
0.04 setlinewidth
stroke
grestore" )
(cons -.1875 1.5)
(cons -.5 .5)
)
%Based on the semitone, assign correct note head
#(define (semitone-to-stencil semitone)
(if (= (remainder semitone 2) 0) downTriangle upTriangle)
)
%Get the pitch in semitones from the note head grob
#(define (stencil-notehead grob)
(semitone-to-stencil
(ly:pitch-semitones (ly:event-property (event-cause grob) 'pitch))
)
)
%%%% Attach stems to note heads correctly
%Stem attachment values as variables
upTriUpStem = #'(1 . -1)
upTridownStem = #'(1 . .9)
downTriUpStem = #'(1 . .9)
downTriDownStem = #'(1 . -1)
%Based on pitch (odd or even), is the note head an up or down triangle,
%Then based on stem direction, assign stem attachment values
#(define (pitch-to-stem pitch stemdir)
(if (= (remainder (absolute-value (ly:pitch-semitones pitch) ) 2) 1)
(if (= UP stemdir) upTriUpStem upTridownStem) (if (=
DOWN stemdir) downTriDownStem downTriUpStem)
)
)
%Get absolute value
#(define (absolute-value x) (if (> x 0) x (- 0 x)))
%Get the stem from notehead grob
#(define (notehead-get-notecolumn nhgrob)
(ly:grob-parent nhgrob X))
#(define (notehead-get-stem nhgrob)
(let ((notecolumn (notehead-get-notecolumn nhgrob)))
(ly:grob-object notecolumn 'stem)))
%Get the pitch and stem direction from the grob
#(define (stem-adjuster nhgrob)
(pitch-to-stem
(ly:event-property (event-cause nhgrob) 'pitch)
(ly:grob-property (notehead-get-stem nhgrob) 'direction) ))
%%%% Begin notehead shape and stem attachment tweaks
TwinNoteNoteHeads =
#(lambda (grob)
(set! (ly:grob-property grob 'stencil) (stencil-notehead grob))
(set! (ly:grob-property grob 'stem-attachment) (stem-adjuster grob))
)
%%%% Place pitches on the staff
TwinNotePitchLayout =
#(lambda (p) (floor (/ (+ (ly:pitch-semitones p) 1) 2)))
%%%%% End TwinNote scripts
melody = \relative c' {
a4 b c d e f g a
}
\score {
<<
\new Staff = "usual size staff" \with {
\override NoteHead #'before-line-breaking = \TwinNoteNoteHeads
staffLineLayoutFunction = \TwinNotePitchLayout
}
{ \melody }
\new Staff = "larger size staff" \with {
\override NoteHead #'before-line-breaking = \TwinNoteNoteHeads
staffLineLayoutFunction = \TwinNotePitchLayout
fontSize = #3
\override StaffSymbol #'staff-space = #(magstep 3)
}
{ \melody }
>>
\layout { }
}
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