2018-09-09 19:47 GMT+02:00 Kieren MacMillan <[email protected]>:
> Hi Joram,
>
> How is your Scheme-fu?
> Maybe you can adapt one of the snippets that applies different tweaks (e.g.,
> color, shape) to notes of different duration.
Hi Joram,
a walk-through:
(1) Create code example:
{ r2 r1 }
(2) Initiate a most simple override
a) Try to go for the desired property directly, i.e. \override
Rest.staff-position = ...
b) Set it to a procedure, i.e. \override Rest.staff-position =
#(lambda (grob) ...)
Probably let the grob be displayed in terminal to ensure adressing the
correct one, i.e.:
{
\override Rest.staff-position = #(lambda (grob) (display grob))
r2 r1
}
(3) Get the duration
Here the 'duration-log will be enough, let it display to ensure corrrect coding
{
\override Rest.staff-position =
#(lambda (grob)
(let ((dur (ly:grob-property grob 'duration-log)))
(newline)
(display dur)))
r2 r1
}
(4) Add a condition relying on the value of duration-log and provide
appropriate values for 'staff-position
{
\override Rest.staff-position =
#(lambda (grob)
(let ((dur (ly:grob-property grob 'duration-log)))
(if (= 0 dur)
6
-6)))
r2 r1
}
Ofcours 6, -6 are not really appropriate values ...
HTH,
Harm
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