On Sun, 13 Apr 2008, David Arnold wrote:
> All,
>
> I was trying to help a student today and the following came up.
>
> drawarrow anglebetween(path1, path2, btex $\theta$ etex)
>
> Is there some way to typeset the theta with an "unfilled" background?
I know there is a metapost way to do this, but cannot recall where I read
that. Something along the lines of (untested)
pic p; p := btex $\theta$ etex ;
unfill (boundingbox p) at the right location ;
draw p ;
However, if you are using the ConTeXt interface, there are easier ways.
This is what I sometimes use
\definetextext[parbox]
{\framed
[ frame=off,
width=2cm,
height=.85cm,
autowidth=no, %also try yes
align={middle,middle},
backgroundcolor=white]}
And then
\startMPcode
drawarrow anglebetween (path1, path2, \sometxt[parbox]{$\theta$} ;
\stopMPcode
Aditya
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