> Reflecting on that, it would involve a bit of programming, essentially
> writing an appropriate panel function for lattice::levelplot. I did this
> back then for polygons, found in sp:::panel.polygonsplot, which is 80
> lines of R code. My guess is that it should be considerable more easy
> for points. I'd be happy to receive & consider proposals.
>
> I think panel.levelplot.points from latticeExtra can be useful:
http://latticeextra.r-forge.r-project.org/#panel.levelplot.points

Best,

Oscar.

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