User 19087 schrieb am 16.01.19 um 21:56:
I'm having trouble scaling down symbols and emojis. For a while I
assumed these don't scale with the current font size. Then I scoured
the mailing list and realized that while scaling down seems broken,
scaling up works as expected:
\tx (or \tfx, \bfx etc.) and \txx are ignored in some cases unlike the
other size switches (\tfa etc.).
When you need a switch for a smaller size which doesn’t has these
limitations you can just create them:
\definefontsize [m]
\definefontsize [n]
\setupbodyfontenvironment
[default]
[m=0.8,
n=0.6]
\usesymbols[mvs]
\setupsymbolset[martinvogel 2]
%\showallmakeup
\starttext
% Progressively larger as expected.
\symbol[ShortForty]
{\tfa\symbol[ShortForty]}
{\tfb\symbol[ShortForty]}
{\tfc\symbol[ShortForty]}
{\tfd\symbol[ShortForty]}
% Unexpectedly all the same size.
\symbol[ShortForty]
{\tfx\symbol[ShortForty]}
{\tfxx\symbol[ShortForty]}
% This works, but why? Isn't \small just a synonym for \tfx via
% \definealternativestyle? Anyway there is no synonym for \tfxx.
\symbol[ShortForty]
{\switchtobodyfont[small]\symbol[ShortForty]}
{\small\symbol[ShortForty]}
No, \small us the same as \switchtobodyfont[small]
% This also works but is less than ideal when matching surrounding
font sizes.
% Which factor should I use to match \tfxx?
\symbol[ShortForty]
\scale[factor=4]{\symbol[ShortForty]}
x = 0.8
xx = 0.6
Wolfgang
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