RE: Re: "Closed" fret diagrams

[juergen . gruen]

> > There is something I do not like about the fret diagrams in
> > Lilypond:
> >
> > The diagrams are "open" on the side pointing towards the bridge of
> > the instrument, with the strings "sticking out" on that side. How
> > could I achieve closed rectangles in Lilypond like e.g. the
> > "MusFrets" font does?
> >
> > www.notationcentral.com/product/musfrets/
> >
> > It is simply about a line drawn at the bottom (in the default
> > direction) of the fret diagram, but I do not know enough scheme to
> > do it.
>
> This sounds like a reasonable request, please file an issue at
>
> gitlab.com/lilypond/lilypond/-/issues/
>
> together with some images.
>
> > It would be great if someone could show how to do that and that
> > might as well be an option that could become standard in a future
> > version.
>
> The complete fret diagram code is in Scheme file
> `scm/fret-diagrams.com`.
>
>
> Werner
For learning purposes, I tried to solve this request. See attached file 
fret-diagrams.scm (lines 283 and 449).
(Keep a copy of the original file! There will be a warning "source file ... 
newer than compiled ...)
Closed Diagram is default.



Example:
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\version "2.24.0"
{
  \clef "treble_8"
 
  <c e g c' e'>1^\markup {    
    \fret-diagram "6-x;5-3;4-2;3-o;2-1;1-o;"    
  }
 
  <c e g c' e'>1^\markup {
    \override #'(fret-diagram-details . ((close-diagram . #f)))    
    \fret-diagram "6-x;5-3;4-2;3-o;2-1;1-o;"    
  }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%




HTH, Juergen.

fret-diagrams.scm
Description: Binary data