Thanks Max that works perfectly! But It would still be useful if I could change families inside a MPpage.
On Tue, May 31, 2022 at 1:31 AM Max Chernoff <mse...@telus.net> wrote: > > I'm using the following macro to set the font size via h-height: > > > > \starttexdefinition setxheight [#1][#2] > > \switchtobodyfont[#1, 12pt] > > \scratchdimen=\dimexpr#2\relax > > \switchtobodyfont[#1, \cldcontext{tex.dimen.scratchdimen / > tex.sp"1ex" > > * tex.sp"1em" .. "sp"}] > > \stoptexdefinition > > > > But I can't figure out how to use that in MPpage. > > So it looks like the "\cldcontext" command doesn't work quite right > inside "textext", and it also looks like "\switchtobodyfont" doesn't > take effect until text is actually typeset when we're inside "textext". > > This seems to work: > > \starttexdefinition setxheight [#1] > \switchtobodyfont[\the\dimexpr #1 * \number\dimexpr1em\relax / > \number\dimexpr1ex\relax \relax] > \stoptexdefinition > > > \starttext > \switchtobodyfont[adventor] > \startMPpage > draw textext.origin("\setxheight[1cm]Hello!"); > > draw (0, 1cm) -- (6cm, 1cm); > \stopMPpage > > \switchtobodyfont[pagella] > \startMPpage > draw textext.origin("\setxheight[1cm]Hello!"); > > draw (0, 1cm) -- (6cm, 1cm); > \stopMPpage > > \switchtobodyfont[heros] > \startMPpage > draw textext.origin("\setxheight[6pt]Hello!"); > draw textext.origin("\setxheight[24pt]Hello!"); > > draw (0, 6pt) -- (6cm, 6pt); > draw (0, 24pt) -- (6cm, 24pt); > \stopMPpage > \stoptext > > The catch here is that you need to set the font family *before* you > start the MPpage. > > -- Max >
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