[NTG-context] "Overlays" with metapost

[Hans Hagen]

Erik Margraf wrote:
> Hello,
> is it possible to achieve an overlay effect with metapost like
> in the attached picture (a photo and a pin in the upper left corner)?
> 
> I could load both images but I can't control the position where
> the pin is inserted.
> 
> Is this possible by other means?
> 
> thank you!

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