Re: mathsf / mathversions in context

[Csikos Bela <bcsikos425@freemail.hu>]

Wolfgang Schuster írta:

>>I would like to set up Tex Gyre Adventor sans serif
>>font as my math font (even if it doesn't havemath symbols). I have 
>>two questions related to this problem.
>>
>>1. In latex I can specify 
>>math font versions, define a specific font as math serif / normal, 
>>another as mathsans serif etc. 
>>(http://milde.users.sourceforge.net/LUCR/Math/math-font-selection.xhtml).
> >Is this possiblein context, and if yes, how?
>
>ConTeXt doesn’t use the same style switches as LaTeX.

Thanks. Is there a way to change font family locally in math mode?
For example how can I use serif if sans serif is the default math font?

>3. You can use the font fallback mechanism to replace certain character 
>in the math font with characters from a text font.
>
>\definefontfamily     [mathfont] [rm] [Tex Gyre Bonum]
>\definefallbackfamily [mathfont] [mm] [Tex Gyre Adventor] 
>[preset=math:lowercaseitalic]
>\definefallbackfamily [mathfont] [mm] [Tex Gyre Adventor] 
>[tf=style:italic,range=0x068,offset=0x0210E]% Planck constant
>\definefontfamily     [mathfont] [mm] [Tex Gyre Pagella Math]
>
>\setupbodyfont[mathfont,10pt]
>

I played a lot with these setups and have questions.
I use this font setting:

\definefontfamily     [docuf] [rm] [TeX Gyre Bonum] 
\definefontfamily     [docuf] [ss] [TeX Gyre Adventor]
\definefontfamily     [docuf] [tt] [Latin Modern Mono] [features=none]

\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:uppercasenormal]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:uppercasebold]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:uppercaseitalic]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:uppercasebolditalic]%,scale=.6]

\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:lowercasenormal]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:lowercasebold]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:lowercaseitalic]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:lowercasebolditalic]%,scale=.6]

\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:digitsnormal]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:digitsbold]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:digitsitalic]%,scale=.6]
\definefallbackfamily [docuf] [mm] [Tex Gyre Adventor] [preset=math:digitsbolditalic]%,scale=.6]

\definefontfamily     [docuf] [mm] [TeX Gyre Pagella Math]

\setupbodyfont[docuf,24pt]

1. If I want to use a scale factor is it possible the give the scale factor by using
the preset a,b,c,d,x,xx values? Or I must specify the scale factors as numbers?

2. Scaling occurs compared to which font in the definition list?

3. I found that if I write \definefontfamily     [docuf] [mm] [TeX Gyre Pagella Math]
before \definefallbackfamily lines, the latter have no effect. Is this normal?
Shouldn't the order of definition lines be indifferent?

4. If I write a paragraph with different font size, how can I scale the embedded math
too automatically? For example if I write

\placefigure[here]{Figure title}{\ss\tfxx
A B C D \math{E~F~G~}}

A B C D is typeset with small fonts but E F G not; it will be huge compared to
A B C D. I can't manually scale the math part because it is inserted here
by chemfig module and I can't redefine how it typesets fonts.

Thanks in advance,

bcsikos
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