On Wed, 23 Jun 2021, Aditya Mahajan wrote:

> On Thu, 24 Jun 2021, Jeong Dal wrote:
> 
> > Now, I am trying to do the same thing using \startuseMPgraphic, but I don’t the correct result yet.
> > Using \startuseMPgraphic, and \dorecurse, the code is simpler. But, it seems to me that \startanimation … \stopanimation is not working with \dorecurse{}{} …
> > It just list all the graphics.
> > Any hint is welcome.
> 
> A while back, I wrote some code to easily generate metapost animations. 
> 
> https://adityam.github.io/context-blog/post/metapost-animation/
> 
> I haven't used it much because I am mostly on linux, and its is a PITA to get an older version of Adobe Reader to work under wine. 

Here's a version using these macros. It runs with MkIV but not with LMTX. Sorry, no time to debug what's going wrong in LMTX right now.

Aditya