Re: [NTG-context] Buffered metapost function freezes random numbers

I found this solution in a old Hans post ( http://ntg-context.ntg.narkive.com/g0lT1D2A/scaling-mpgraphics) 2016-05-25 18:30 GMT+01:00 Wolfgang Schuster :

DesdeChaves 25. Mai 2016 um 19:09 For educational purposes I try to simulate a ammeter for reading practice. I would like create six or more ammeter with different readings, but i'm not able to do that because metapost create the same random number every time I call the buffer that defines my ammeter.

How can I fix that?

Is there a reason why you use \externalfigure because the width can be set with \scale, e.g.

\scale[width=8cm]{\getbuffer[ammeter]}

Wolfgang

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-- Atentamente DesdeChaves