Oliver Buerschaper schrieb:
> Hi there,
>
> maths can sometimes be weird and even more so the kinds of formulas
> one needs to typeset occasionally ;-)
>
> So here I need to typeset triangles and a variety of other polygons
> right in the middle of a display formula. What I've been able to come
> up with so far is something like this:
>
> ---
> \starttext
>
>
> \startuseMPgraphic{tetrahedral}
> u := 10pt;
> draw (0,0)--(2u,0)--(u,sqrt(3)*u)--cycle;
> \stopuseMPgraphic
>
The bounding box of the graphic is set on the base line. So you have to
add some artificial depth to the graphic.
\starttext
\startreusableMPgraphic{tetrahedral}
begingroup
u := 10pt;
draw (0,0)--(2u,0)--(u,sqrt(3)*u)--cycle;
draw boundingbox currentpicture withpen pensquare scaled .1;
endgroup;
\stopreusableMPgraphic
\def\Tetrahedral{\lower5pt\hbox{\reuseMPgraphic{tetrahedral}}}% needs
some fiddling :)
\startformula
\Phi(\Tetrahedral)=F_{kln}^{ijm}\,v_iv_jv_kv_l\,
\delta_{j^*nk^*}\,\delta_{l^*n^*i^*}\,\Phi(\emptyset)
\stopformula
\stoptext
Best wishes, Peter
> \startformula
> \Phi(\useMPgraphic{tetrahedral})=F_{kln}^{ijm}\,v_iv_jv_kv_l\,
> \delta_{j^*nk^*}\,\delta_{l^*n^*i^*}\,\Phi(\emptyset)
> \stopformula
>
>
> \stoptext
> ---
>
> Now if I only knew how to properly align my MetaPost figure with the
> rest of the formula … any ideas?
>
> Cheerio,
> Oliver
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>
___________________________________________________________________________________
If your question is of interest to others as well, please add an entry to the
Wiki!
maillist : [email protected] / http://www.ntg.nl/mailman/listinfo/ntg-context
webpage : http://www.pragma-ade.nl / http://tex.aanhet.net
archive : https://foundry.supelec.fr/projects/contextrev/
wiki : http://contextgarden.net
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