One slight problem is when I use 2\measured{xheight} as the font size I get an error. \measure works fine though. On Sat, May 28, 2022 at 9:34 AM Stefan Nedeljkovic wrote:

Awesome, thank you very much Max!

On Sat, May 28, 2022 at 8:49 AM Max Chernoff wrote:

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How would one specify the font size in LMTX, but via x-height?

You could try this:

\starttexdefinition setxheight [#1][#2] \switchtobodyfont[#1, 12pt] \switchtobodyfont[#1, \cldcontext{tex.sp"#2" / tex.sp"1ex" * tex.sp"1em" .. "sp"}] \stoptexdefinition

Demo:

\starttexdefinition setxheight [#1][#2] \switchtobodyfont[#1, 12pt] \switchtobodyfont[#1, \cldcontext{tex.sp"#2" / tex.sp"1ex" * tex.sp"1em" .. "sp"}] \stoptexdefinition

\define[1]\sample{% \setxheight[#1][10pt] Hello% }

\setuppapersize[letter, landscape]

\starttext \dontleavehmode\rlap{\vrule width\textwidth height 10.5pt depth -10pt}% \processcommalist[modern, pagella, termes, heros, bonum, scholas, adventor, cursor, chorus, dejavu]\sample \stoptext

This is kind of a hacky solution though. It works reasonably well, although there's likely a better (perhaps builtin?) way to do this.

-- Max

Perfect, thank you very much Max! On Sat, May 28, 2022 at 10:40 AM Max Chernoff wrote:

On 2022-05-28 2:27 a.m., Stefan Nedeljkovic wrote:

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One slight problem is when I use 2\measured{xheight} as the font size I get an error. \measure works fine though.

The old version expected direct input, not a \dimen. Try this:

\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

\definemeasure[xheight][2.5pt]

\starttext \setxheight[adventor][10\measured{xheight}] Hello! \stoptext

-- Max