Thank you Paul.  This is interesting!

I have not played with super-sampling yet.  I am assuming you mean creating a new map 8x the size? If so, did you fill the interstitial grid with zeroes? Local maximum? Linear interpolation?  Tricubic spline?

And when you say "sharpen/blur" with a factor of 4. Is 4 a scale factor? or a B factor?

Cheers, and I hope you had a pleasant weekend,

-James

On 4/28/2023 5:29 PM, Paul Emsley wrote:
What fun!

super-sampled by a factor of 2 then sharpen/blur with a factor of 4 gives a superposition

Paul.


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