Michael Stickles wrote
> Our choir has developed some "in-house" markings which I'm trying to
> replicate in LilyPond. One is the use of a double slash to visually
> indicate the last section of a piece when the musical pattern changes
> for that last part.
>
> I can replicate that by using a markup like the following:
>
> a2^\markup { \with-dimensions #'(0 . 0) #'(0 . 0) \path #0.3 #'((moveto
> 5 -2) (lineto 7 2) (moveto 6 -2) (lineto 8 2)) }
>
> However, when the note I'm using is above the staff, I need to move the
> Y-coordinates down, and sometimes there's a need to shift the slashes
> closer to or further away from the note. So I'm trying to set up a
> markup function to handle this, so I can just annotate the note as:
>
> a2^\markup \double-slash #5 #-2
>
> But I can't seem to get the syntax correct. If I leave the arguments as
> dummy args, this works:
>
> #(define-markup-command (double-box layout props xoff yoff) (number?
> number?)
> (interpret-markup layout props
> #{
> \markup {
> \with-dimensions #'(0 . 0) #'(0 . 0)
> \path #0.3 #'((moveto 5 -2) (lineto 7 2) (moveto 6 -2)
> (lineto 8 2))
> }
> #}
> ))
>
> But when I try to implement the numbers, I get errors no matter what I
> do. This (while it doesn't work) shows what I'm trying to get to:
>
> #(define-markup-command (double-box layout props xoff yoff) (number?
> number?)
> (interpret-markup layout props
> #{
> \markup {
> \with-dimensions #'(0 . 0) #'(0 . 0)
> \path #0.3 #'((moveto xoff yoff) (lineto (+ xoff 2) (+ yoff
> 4)) (moveto (+ xoff 1) yoff) (lineto (+ xoff 3) (+ yoff 4)))
> }
> #}
> ))
>
>
> Any ideas on what I'm doing wrong?
>
>
> - Mike
>
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