On 18-4-2018 20:26, Helge Kruse wrote:
Am 18.04.2018 um 12:39 schrieb Engraver:
I use "with-dimensions" if I want to place some text over staves. And
"\whiteout" can be used to blot out the staff-lines. See attached.
It's rather hackish, so I hope the more knowledgeable members of the
list have a more elegant solution for you.
This is one approach I would follow.
Since this repeats I would like to put this to a scheme construct. But I
don't have sufficient knowledge. Here is my (failed) try:
%%START
\version "2.19.65"
narrator =
#(define-music-function (dim text) (integer? string?)
#{
s1^\markup
\with-dimensions #'(0 . dim) #'(0 . 0)
\override #'(line-width . dim)
\translate #'(0 . -1.5)
\wordwrap { text }
#})
\score {
\narrator #1 "The message"
}
%%END
It looks like the parameter 'dim' can't be used in this way to build a
valid parameter to with-dimension. Is this true? How to do it correctly?
How could I pass 'dim+2' to the override of line-width?
Regards,
Helge
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My scheme knowledge is very very limited. I just found out one can
construct a pair in a scheme function like this:
#(cons a b)
where a and b are the values. So for your function "narrator", this
would become:
\with-dimensions #(cons 0 dim) #'(0 . 0)
I am however lost how to make "\override #'(line-width . dim)" work
inside this scheme-function.
Regards,
Auke
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