Nick Payne-3 wrote
> On 26/09/12 18:05, Stefan Thomas wrote:
>> Dear community,
>> I have a problem with a sheme-function that does'nt work any more.
>> I get the error message:
>>
>> wrong type for argument 1. Expecting character, found "D"
>> \markup { \slashed-char
>> #"D" }
>>
>>
>> I need it a slashed letter, it is necessary for some symbols used in
>> harmony classes in german music theory.
>
> ...
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Hello,
in the brand new music glossary (2.17.3), section functional harmony, source
code in Documentation/music-glossary.tely you'll find the following markup
command definition:
#(define-markup-command (diagonal-stroke layout props arg)
(markup?)
#:category font
#:properties ((font-size 0) (thickness 1.5) (extension 0.07))
(let*
((thick (* (magstep font-size)
(ly:output-def-lookup layout 'line-thickness)))
(underline-thick (* thickness thick))
(markup (interpret-markup layout props arg))
(x1 (car (ly:stencil-extent markup X)))
(x2 (cdr (ly:stencil-extent markup X)))
(y1 (car (ly:stencil-extent markup Y)))
(y2 (cdr (ly:stencil-extent markup Y)))
(dx (* extension (- x2 x1)))
(dy (* extension (- y2 y1)))
(line (make-line-stencil underline-thick
(- x1 dx) (- y1 dy)
(+ x2 dx) (+ y2 dy))))
(ly:stencil-add markup line)))
followed by the usage example
\markup { \concat { \diagonal-stroke D \super "7" } }
ArnoldTheresius
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