On Sep 11, 2008, at 6:20 PM, Thomas A. Schmitz wrote: >> \starttext >> >> \start >> >> \setbox\scratchbox\vbox{\externalfigure[mill]} >> >> \dimen0=\wd\scratchbox >> \dimen2=\ht\scratchbox >> >> \framed[frame=on,strut=no,width=8cm,height=2cm] >> {\dimen1=\hsize \divide\dimen1 by \dimen0 >> \dimen3=\vsize \divide\dimen3 by \dimen2 >> \ifdim\dimen1>\dimen3 >> \externalfigure[mill][height=\vsize] >> \else >> \externalfigure[mill][width=\hsize] >> \fi} >> >> \framed[frame=on,strut=no,width=2cm,height=8cm] >> {\dimen1=\hsize \divide\dimen1 by \dimen0 >> \dimen3=\vsize \divide\dimen3 by \dimen2 >> \ifdim\dimen1>\dimen3 >> \externalfigure[mill][height=\vsize] >> \else >> \externalfigure[mill][width=\hsize] >> \fi} >> >> \stop >> >> \stoptext >> >> Wolfgang > > Wolfgang, > > as always, you're a source of wisdom and knowledge... Just I > understand this correctly and can adapt it to my macro: \dimen1= > \hsize: here \hsize refers to the size of the \framed inside which > we're operating, right?
And another question: I get an error "! Illegal unit of measure (pt inserted)." Is it really possible to divide a dimension by another dimension? Not according to what I read here: http://www.tug.org/utilities/plain/cseq.html#divide-rp "must be a nonzero integer." See, I'm far from being a native speaker of TeX... Best Thomas ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / 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 ___________________________________________________________________________________