[NTG-context] Centering a figure vertically on a page

[Wolfgang Schuster]

Am 03.07.2012 um 13:21 schrieb Marcin Borkowski:

> Hello,
> 
> the subject line basically covers my problem: I have a large (tikz)
> figure, and I want to have it by itself on a page, centered both
> horizontally and vertically.  How can I achieve this?  I already know
> that \setuppagenumber[state=stop] is a good idea, and \midaligned{...}
> gives me horizontal centering; what about vertical?  The problem is
> that the figure is larger than the text area (and this doesn't bother
> me, it's a game board and it may extend almost to the paper border),
> so \vfill doesn't work (and \vss doesn't, either).

\starttext
%\noheaderandfooterlines
\centerbox{\externalfigure[cow]}
\stoptext

Wolfgang