Thanks Hans, Wolfgang, Luigi The new beta with Luatex 0.88 makes \fieldstacks and \startanimation work. The following example of Wolfgang is now working well.
\def\MyGraphics#1{% \startMPcode path p,q; p:=fullcircle scaled 72; L:=length p; N:=20; q:=subpath (0,#1/N*L) of p; draw q withcolor red; fill fullcircle scaled 3 shifted point length q of q withcolor blue; setbounds currentpicture to unitsquare shifted (-0.5,-0.5) scaled 75; \stopMPcode} \usemodule[animation] \setupinteraction[state=start] \starttext \startanimation[menu=yes] {\MyGraphics {5}} {\MyGraphics {10}} {\MyGraphics {15}} {\MyGraphics {20}} \stopanimation \stoptext One more question. Is there any convenient way to list \MyGraphics{#1}? I tried \dorecurse, but it just display figures one by one. I also tried lua, but it stops with the error message “unexpected symbol near ‘\'”. \dorecurse{20} {{\MyGraphics {\recurselevel}} \startluacode for i = 1, 20 do context(“{\\MyGraphics <smb://MyGraphics>{i}}”) end \stopluacode Thanks again. Best regards, Dalyoung > Today's Topics: > > 1. Re: Fieldstacks are broken (Hans Hagen) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 11 Jan 2016 10:53:56 +0100 > From: Hans Hagen <pra...@wxs.nl> > To: ntg-context@ntg.nl > Subject: Re: [NTG-context] Fieldstacks are broken > Message-ID: <56937bb4.1070...@wxs.nl> > Content-Type: text/plain; charset=utf-8; format=flowed > > On 1/10/2016 5:01 PM, Wolfgang Schuster wrote: >> Hi Hans, >> >> the fieldstack mechanism doesn’t work anymore. >> >> \setupinteraction[state=start] >> >> \starttext \showframe >> >> \definesymbol[frame-1][\tt 1] >> \definesymbol[frame-2][\tt 2] >> \definesymbol[frame-3][\tt 3] >> >> \definefieldstack[frame][frame-1,frame-2,frame-3] >> >> \placeontopofeachother >> {\framed[strut=no,offset=1ex]{\fieldstack[frame]}} >> {\goto{Play}[Walk{frame}]} >> >> \stoptext > > fixed in next engine update > > > ----------------------------------------------------------------- > Hans Hagen | PRAGMA ADE > Ridderstraat 27 | 8061 GH Hasselt | The Netherlands > tel: 038 477 53 69 | www.pragma-ade.com | www.pragma-pod.nl > -----------------------------------------------------------------
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