Re: Opinions: expressive text and markup sizes

[Aaron Hill]

On 2018-07-09 01:54, Torsten Hämmerle wrote:
> In other words: the object's individual font-size property is getting 
> in the
> way when using the \magnify command and you'll have to take the current
> font-size into account.
>
> Just declare
>   #:properties ((font-size 0))
> in order to make the current font-size available and use
>   (magstep font-size)
> as a "fudge factor" instead of a hard-coded 1.125.

Thanks, Torsten.  Based on this, I wonder if \scale would be the better 
choice to avoid what happens with \magnify:

%%%%
  #(define-markup-command (fontsize-x-height layout props size arg) 
(number? markup?)
    (let* ((y-extent (ly:stencil-extent (interpret-markup layout props 
(markup "x")) Y))
           (scale-factor ((lambda (x) (cons x x)) (/ size (cdr 
y-extent)))))
      (interpret-markup layout props #{ \markup \scale #scale-factor 
#arg #})))
%%%%

-- Aaron Hill