Re: [NTG-context] Mathdesign and Fourier fonts (was What do you miss in ConTeXt?)

17 Feb 2010

      On Tue, Feb 16, 2010 at 1:42 PM, Mikael Persson  wrote:
...
On Tue, Feb 16, 2010 at 1:31 PM, Hans Hagen  wrote:
...
On 16-2-2010 11:38, Mikael Persson wrote:
...
Thank you Mojca and Aditya for your answers,
I hope the mathdesign part of mtx-update.lua will end up in the
orignal file. I do not know how to use it now.
If I save this file and update with "sh firstsetup.sh --extras=all"
(or --extras=mathdesign) it seems that the mtx-update.lua is
overwritten with the version from the server. I do not know howto
upgrade with mtx-update.lua without firstsetup.sh.
About the fourier fonts. Is there a lot of work to do in math-vfu.lua
to get it to work? I looked into that file, but it was a bit hard to
understand what is needed...
Maybe it is hard work to get the fonts working, but I really think
that if we have several text+math fonts easily available in the
minimals that will make (new) users very happy.
it depends ... if the font is in tex default encoding then it's only a
matter of adding a small table
I'm not 100% sure how it works wth font encodings, but the fourier doc
(http://mirror.ctan.org/fonts/fourier-GUT/doc/latex/fourier/fourier-doc-en.pd...)
says that the fonts are _fully_ T1 encoded.
Mikael
PS: Hans, do you have any comments about the mathdesign patch
suggested by Mojca above?
I have now manually downloaded the mathdesign fonts (and the charter
fonts, not available on the server it seems)

The fonts gets used, but I get upright math letters instead of italic
ones. My test file is given by

\definetypeface[charter][rm][serif][charter]     [default]
\definetypeface[charter][mm][math] [charter]     [default]

\setupbodyfont[charter,10pt]

\starttext
We define, for real $x$, the absolute value of $x$ as
\startformula
|x|=
\startcases
\NC \hphantom{-}x \MC x\geq 0,\NR
\NC -x \MC x<0.\NR
\stopcases
\stopformula
Also let $\alpha$, $\beta$ and $\Gamma$ be\dots
\stoptext

The output can be found at

http://home.imf.au.dk/mickep/mdesign.pdf

Typesetting a similar document with LaTeX I get italic math (note also
that the \Gamma is upright, I guess that this is an option that is
turned on by default by LaTeX)

http://home.imf.au.dk/mickep/lmdesign.pdf

I guess this has something to do with the following lines in math-vfu.lua

mathematics.make_font ( "charter-math", {
    { name = "file:bchr8a", features = "virtualmath", main = true },
 -- { name = "md-chr7m.tfm", vector = "tex-mr" },
    { name = "md-chri7m.tfm", vector = "tex-mi", skewchar=0x7F },
    { name = "md-chri7m.tfm", vector = "tex-it", skewchar=0x7F },
    { name = "md-chr7y.tfm", vector = "tex-sy", skewchar=0x30,
parameters = true },
    { name = "md-chr7v.tfm", vector = "tex-ex", extension = true },
    { name = "msam10.tfm", vector = "tex-ma" },
    { name = "msbm10.tfm", vector = "tex-mb" },
} )

However, I am not able guess what to change (I tried different things
available in mdbch.map).

Any help is appreciated.

Mikael