On 2016-04-19 12:32, reetpetite wrote:
Dear lilypond-user group,
I am struggling with a font size problem.
When using abs-fontsize the final pdf font sizes are always a bit smaller
than the values specified
results in a pdf where the font sizes are
default : 10.96 pt
abs-fontsize #16: 15.94 pt
abs-fontsize #12: 11.95 pt
abs-fontsize #10: 9.96pt
How can I get Lilypond to produce the exact font size specified with
abs-fontsize?
Hi $NAME,
maybe you are getting what you want, but don't know it? :-)
Looking forward to your input
Input:
% for s in 10 11 12 16; do echo "$s * 72/72.27 = $(printf "%7.4f" $((s *
72/72.27)))"; done
Output:
10 * 72/72.27 = 9.9626
11 * 72/72.27 = 10.9589
12 * 72/72.27 = 11.9552
16 * 72/72.27 = 15.9402
Lilypond's abs-fontsize sets the size in the unit that LaTeX calls a pt
(typographic points; 1 pt = 1/72.27 in), whereas PDF's internal unit is
a bp ("big point" or DTP point; 1 bp = 1/72 in). See, e.g.,
https://en.wikipedia.org/wiki/Point_(typography).
Most probably, noone will notice without opening the file in a PDF
editor (which typically show bp). And if she does, she will love you for
being a good old-school typographer who does not settle on those new
trends. ;-)
Nevertheless, you can manually adjust the argument of abs-fontsize by
yourself, using
\abs-fontsize #(* 11 1.00375)
or the slightly more verbose
\abs-fontsize #(* 11 (/ 72.27 72))
where you replace 11 by your desired value in bp.
Cheers,
Alexander
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