On Wed, Oct 19, 2011 at 1:34 PM, Lutz Haseloff wrote:

Hi Hans, Hi all,

with newest Context and luatex compiling following file:

\starttext \startMPcode draw externalfigure "hacker.jpg" xscaled 30mm yscaled 20mm ; \stopMPcode \stoptext

doesn't show the picture and gives an error message:

! Improper `addto'. <to be read again>                   withpen draw->...:also(EXPR0)else:doublepath(EXPR0)withpen                                                  .currentpen.fi._op_ <to be read again>                   ; <to be read again>                   ; <*> ...re "hacker.jpg" xscaled 30mm yscaled 20mm ;                                                   ;

metapost        > error: unknown, no error, terminal or log messages metapost        > terminal: [1]

Thanks for any help

Lutz hm, strange, it seems that externalfigure is redefined This is ok

\starttext \startMPcode def externalfigure primary filename = if false : rawtextext("\externalfigure[" & filename & "]") else : image ( addto currentpicture doublepath unitsquare withprescript "fg_name=" & filename ; ) % unitsquare % withpen pencircle scaled 0 % withprescript "fg_name=" & filename fi enddef ; draw externalfigure "hacker.jpg" xscaled 30mm yscaled 20mm ; \stopMPcode \stoptext -- luigi