On Sat, Oct 27, 2012 at 12:00 PM, Hans Hagen <pragma@wxs.nl> wrote:

On 26-10-2012 10:16, luigi scarso wrote:

Strange error with \externalfigure


\starttext
\vbox to \textheight{%
\vfill
Foo\
\vfill
\centerline{\externalfigure[cow][width=0.5\textwidth,height=0.5\textheight,factor=fit
]}
\vfill
}
\stoptext

! Missing number, treated as zero.

as expected:

  [factor=fit]  : keyword fit
  [factor=fit ] : no known keyword, so dimension