TeXGyre Fonts

[David Carlisle]

On Thu, 31 Oct 2024 at 18:53, Herbert Voss <Herbert.Voss at fu-berlin.de>
wrote:

>
>
>
> Am 31.10.24 um 16:15 schrieb David Carlisle:
> >
> > this just came up at
> >
> > https://github.com/latex3/fontspec/issues/533
> >
> > It's true that xetex (for some reason) is picking up the preferred
> > family name and loading the companion font on a request for
> > TeX Gyre Termes Math, but looking at the description of that field at
> >
> >
> https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6name.html
> >
> > I think the font is correct: this field groups this companion font
> > under the main family in relevant menu interfaces.
>
> But the fonts are completely different, the TeXGyreTermesMath-Companion.otf
> for example has only 2 glyphs.  The standard texgyretermes-math.otf has
> 1112!
>

yes the companion fonts are just add-on fonts adding some extra glyphs

>
> So  \setmathfont{TeX Gyre Termes Math} should find the standard one.
>

yes exactly  but xetex should be using the internal font family or PS Name
or .. anything other than the preferred-family field
you can avoid the problem by using the file name or using
\setmathfont{TeXGyreTermesMath-Regular} for example


> Herbert
>
>
> >
> > most likely xetex should just not see this field at all.
> >
> > David
> >
> >
> >
> > On Thu, 31 Oct 2024 at 14:37, Herbert Voss <Herbert.Voss at fu-berlin.de>
> > wrote:
> >
> >     Hello all,
> >
> >     the texgyre math fonts are in .../fonts/opentype/tex-gyre-math:
> >
> >     texgyredejavu-math.otf
> >     texgyrepagella-math.otf
> >     texgyreschola-math.otf
> >     texgyretermes-math.otf
> >
> >     In the font dir .../fonts/opentype/context-companion-fonts I see:
> >
> >     LatinModernMath-Companion.otf
> >     TeXGyreBonumMath-Companion.otf
> >     TeXGyreTermesMath-Companion.otf
> >     RalphSmithsFormalScript-Companion.otf
> >     TeXGyrePagellaMath-Companion.otf
> >     XITSMath-Companion.otf
> >
> >
> >     The TeX Gyre Termes Fonts have different fontnames except of
> >     the entry for "Preferred family"
> >
> >     voss>context-companion-fonts:$ otfinfo -i
> >     TeXGyreTermesMath-Companion.otf
> >     Family:              TeX Gyre Termes Math Companion
> >     Subfamily:           Companion
> >     Full name:           TeXGyreTermesMath-Companion
> >     PostScript name:     TeXGyreTermesMath-Companion
> >     Preferred family:    TeX Gyre Termes Math
> >
> >
> >     this is misleading to me, because the original
> >     texgyretermes/bonum/pagella-math
> >     have the same name for "Preferred family".  The companion fonts
> >     are also
> >     completely different to the original ones. Should't it be better to
> >     change also the "Preferred family" entry identically to the Family
> >     name
> >     for the companion fonts?
> >
> >     Herbert
> >
>
>
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