Am 20.08.2014 um 17:09 schrieb Gerben Wierda <gerben.wierda@rna.nl>:

\placefigure [] [foo] {Bar}
{\externalfigure[foo.pdf][rotation=90]}

Does not rotate my figure. It just remains as is. Am I forgetting something?

You’re using the wrong key.

\setupexternalfigures[location=default]

\starttext

\externalfigure[cow][width=4cm]

\externalfigure[cow][width=4cm,orientation=90]

\rotate[rotation=90]{\externalfigure[cow][width=4cm]}

\stoptext

Wolfgang