Re: Problems defining markup function to draw lines.

[Reggie]

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
> 
> _______________________________________________
> lilypond-user mailing list

> lilypond-user@

> https://lists.gnu.org/mailman/listinfo/lilypond-user

Featherbeamingthread on Nabble.coms?



--
Sent from: http://lilypond.1069038.n5.nabble.com/User-f3.html