Re: [NTG-context] Weird Fieldstack problem

11 Jun 2007

      Hi Aditya,

In my situation, I can't use buffer conveniently. So is there an easy way to
\includeMPgraphic recurrently? I've tried
====================================
\newcount\steps

%%%%%%%% repeat the following block several times
\advance\steps\plusone
\startuseMPgraphics{step\the\steps}
. . . % Some random graphics
\stopuseMPgraphic
%%%%%%%%%%%%%%%%%%%%%%%%%

\startuseMPgraphic{aa}
\dorecurse{\the\steps}
  {\includeMPgraphic{step\recurselevel}}
\stopuseMPgraphic
====================================

but, it's not working.

On 6/9/07, Aditya Mahajan  wrote:
...
Quoting Zhichu Chen :
...
Hi Aditya,
Actually, they should have the same boundingbox, the first MPdrawing
environment draws a line from (0,0) to (2cm,2cm) and the sequence
MPdrawing
environments just add two lines that are in the previous boundingbox.
I know what's happening now. \definesymbol doesn't define a symbol
from \getMPdrawing at once.
Yes, \definesymbol[a][b] is roughly equal to \def\a{b}, for example
\starttext
\def\something{aa}
\definesymbol[aa][\something]
\symbol[aa]
\def\something{bb}
\symbol[aa]
\stoptext
This is what is also happening in your case. You need to go back to the
definebuffer and processbuffer as suggested in metafun manual.
I do not know if it makes sense to have a \edef version of
definesymbol. In any case, getting expansion to work with \getMPdrawing
is going to be difficult.
Aditya
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