On Mar 23, 2012, at 6:55 PM, Thomas A. Schmitz wrote:

But is there a method for similar calculations inside a frame? Here's what I tried, but it doesn't give the expected result (the image is much smaller than expected):

\starttext

\framed[width=7cm]{\externalfigure[cow][width=\the\dimexpr0.9\framedparameter{width}\relax]}

\stoptext

Thanks for any pointers!

Thomas

Try

\framed[width=7cm]{\externalfigure[cow][width=\dimexpr\framedparameter{width}*9/10]}

[I don't understand \dimexpr.   For instance 7cm = ~198pt, 0.9 * 7 cm = ~179pt, but \dimexpr0.9\framedparameter{width} yields 27.5992pt.  It doesn't seem to work well with decimals.  No wiki page for it, that I can find.]

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