问题描述
我需要一个不太明显的问题的帮助。但是对于我作为一名教育者来说很重要。
在Lilypond 2.18及更早版本中,使用摘要(https://t1p.de/b7s8)中的着色方案,我能够用根音颜色为指板的圆点着色。我会简单地使用以下代码:
\override FretBoard #'color = #color-notehead.
(附件图像的顶部)
当我升级到Lilypond 2.20时,圆点的颜色消失了,取而代之的是黑色(如所附图像的底部所示)。 我没有更改任何代码(如果需要,可以提供)。
现在,与
\override FretBoard #'(fret-diagram-details dot-color) = #'white
我可以将点颜色覆盖为某些静态颜色-但这与动态着色点的美相差很远。
有人可以指出这是哪里出了错吗?
Attached image with 2.18 and 2.20 renditions of the same code
这是一个最小代码示例,该示例在2.18中通过其根音为点动态着色,而在2.20中将其保留为静态颜色
\version "2.20.0"
\header { title = "guitar Chords"}
{
%Chords
\storePredefinedDiagram #default-fret-table \chordmode {a}
#guitar-tuning #"o;o;2-2;2-3;2-4;o;"
\storePredefinedDiagram #default-fret-table \chordmode {bes}
#guitar-tuning #"1-1-(;1-1;3-2;3-3;3-4;1-1-);"
\storePredefinedDiagram #default-fret-table \chordmode {c}
#guitar-tuning #"3-3;3-4;2-2;o;1-1;o;"
}
%Colour map
#(define color-mapping
(list
(cons (ly:make-pitch 0 0 NATURAL) (x11-color 'red3))
(cons (ly:make-pitch 0 5 NATURAL) (x11-color 'blue3))
(cons (ly:make-pitch 0 6 FLAT) (x11-color 'magenta3))
)
)
%Compare pitch and alteration (not octave).
#(define (pitch-equals? p1 p2)
(and
(= (ly:pitch-alteration p1) (ly:pitch-alteration p2))
(= (ly:pitch-notename p1) (ly:pitch-notename p2))))
#(define (pitch-to-color pitch)
(let ((color (assoc pitch color-mapping pitch-equals?)))
(if color
(cdr color))))
#(define (color-notehead grob)
(pitch-to-color
(ly:event-property (event-cause grob) 'pitch)))
chordNames = \chordmode { a2 bes c }
\score {
<<
\new ChordNames \chordNames
\new FretBoards
{ \override FretBoards.FretBoard #'size = #'2.0
\override FretBoard #'(fret-diagram-details finger-code) = #'in-dot
\override FretBoard #'(fret-diagram-details orientation) = #'portrait
%This command changes the colour of the fretboard (and used to change the dots in 2.18)
\override FretBoard #'color = #color-notehead
\chordNames
}
>>
}
解决方法
在Lilypond论坛上,Harm发表了一篇文章。添加后,它会以与指板相同的颜色为点着色。这是一个临时解决方案,但很吸引人。
\override FretBoards.FretBoard.before-line-breaking =
#(lambda (grob)
(ly:grob-set-nested-property! grob '(fret-diagram-details dot-color)
(color-dot grob)))