Am 18.09.2010 um 12:49 schrieb Henning Hraban Ramm:

> This works in MkII, but not MkIV. Other symbol sets like mvs work
> (even with a list of error messages).

All symbol fonts are tricky with mkiv because luatex moves them
to the private slots, you can see this on the terminal when you
load the font for the first time.

load afm        > unifying /Users/wolf/context/tex/texmf-context/fonts/afm/hoekwater/koeieletters/koeielogos-contour.afm
load afm        > assigning private slot U+F0000 for unknown glyph name T_e_X
load afm        > assigning private slot U+F0001 for unknown glyph name texlogo.alt
load afm        > assigning private slot U+F0002 for unknown glyph name contextlogo.shadow
load afm        > assigning private slot U+F0003 for unknown glyph name PragmaADElogo
load afm        > assigning private slot U+F0004 for unknown glyph name C_o_w_t_e_x_t
...

I found no system how the original position in the font and
the assigned position is related, maybe Taco knows a answer.

With the message above from the terminal you can now load
the symbols with \char"F00xx but mkiv provides also a mechanism
to access a symbol by the glyphname with \fontchar{T_e_X}.

I attached a modified version of the cow symbol where i used
the glyph names for each symbol but what we need are different
files for the symbols in mkii and mkiv. Hans, can you modify
the \usesymbols command to behave like \usetypescriptfile which
looks first for a mkii/mkiv file and then for a tex file?

> Under MkIV I managed to get my hands on the Cows (text) font via
> \definedfont[Cows at 30mm], but not on CowLogos.

You can use the text fonts with \setupbodyfont[cow].

Wolfgang