Re: How to use noto sans math font?

[Mikael Sundqvist via ntg-context <ntg-context@ntg.nl>]

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Hi,

No intend to be complete or so (not by computer either, so could not look
into it), it was just for a test a while back. But it could serve as a
start.

/Mikael

Den ons 5 apr. 2023 12:07Li Yanrui (李延瑞) via ntg-context <ntg-context@ntg.nl>
skrev:

> Hi,
>
> I try to use the Noto Sans Math fnt which can be downloaded from
> https://fonts.google.com/noto/specimen/Noto+Sans+Math
>
> But I use it like the following
>
> \definefontfamily[myfonts][rm][latin modern roman]
> \definefontfamily[myfonts][mm][noto sans math]
> \setupbodyfont[myfonts,rm,12pt]
> \starttext
> Test Noto Sasn Math Fonts
> \startformula
> a^2 \quad \sqrt{a}
> \stopformula
> \stoptext
>
> I get the errors `Math error: parameter 'supshiftup' with id 51 in style 0
> is not set'.
>
> Is there some method to solve it?
>
>
> --
> Best regards,
>
> Li Yanrui
>
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\starttypescriptcollection[notosans]

    % \definefontfeature[default-slanted-xcharter][default][slant=.2]
    % \definefontfeature[none-slanted-xcharter]   [none]   [slant=.2]

    \doifunknownfontfeature {noto-math-bold} {\definefontfeature[noto-math-bold][boldened]}

    \starttypescript [\s!serif] [noto] [\s!name]
        \definefontsynonym [\s!Serif]           [\s!file:NotoSerif-Regular]    [\s!features=\s!default]
        \definefontsynonym [\s!SerifItalic]     [\s!file:NotoSerif-Italic]     [\s!features=\s!default]
        \definefontsynonym [\s!SerifBold]       [\s!file:NotoSerif-Bold]       [\s!features=\s!default]
        \definefontsynonym [\s!SerifBoldItalic] [\s!file:NotoSerif-BoldItalic] [\s!features=\s!default]
    \stoptypescript

    \starttypescript [\s!sans] [noto] [\s!name]
        \setups[\s!font:\s!fallback:\s!sans]
        \definefontsynonym [\s!Sans]          [\s!file:NotoSans-Regular]       [\s!features=\s!default]
        \definefontsynonym [\s!SansItalic]    [\s!file:NotoSans-Italic]        [\s!features=\s!default]
        \definefontsynonym [\s!SansBold]      [\s!file:NotoSans-SemiBold]      [\s!features=\s!default]
        \definefontsynonym [\s!SansBoldItalic][\s!file:NotoSans-SemiBoldItalic][\s!features=\s!default]
    \stoptypescript

    \starttypescript [\s!math] [noto][\s!name]
        \checkedmapfontsize[\typescripttwo][\s!script]      [.70]
        \checkedmapfontsize[\typescripttwo][\s!scriptscript][.55]
    \stoptypescript

    \starttypescript [\s!math] [noto][\s!name]
        \definefontsynonym [\s!MathRoman]    [\s!file:NotoSansMath-Regular.ttf][\s!features={\s!math\mathsizesuffix,noto:mathextra,mathextra}]
        \definefontsynonym [\s!MathRomanBold][\s!file:NotoSansMath-Regular.otf][\s!features={\s!math\mathsizesuffix,noto-math-bold,noto:mathextra,mathextra}]
    \stoptypescript

    \starttypescript [noto]
        \definetypeface [\typescriptone] [\s!rm] [\s!serif] [\typescriptone] [\s!default]
        \definetypeface [\typescriptone] [\s!ss] [\s!sans]  [\typescriptone] [\s!default]
        \definetypeface [\typescriptone] [\s!mm] [\s!math]  [\typescriptone] [\s!default]
        \quittypescriptscanning
    \stoptypescript

\stoptypescriptcollection

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\setupbodyfont[noto,ss]

\starttext

\samplefile{knuth}

% \showmakeup[mathglue]
% \showglyphs

\startformula
x = \frac{-b \pm \sqrt{b^2-4ac}}{2a} \breakhere

\int_0^n e^x \dd x \breakhere

\int_a^b f'(x) \dd x = f(b) - f(a) \breakhere

x+\mrightarrow{1+2}{a+b+c} + \wideoverrightharpoon{x+y+z+u+v+w} + \widetilde{x+y+z+u+v+w}
\stopformula

\stoptext

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