I have no idea how to find the neighbouring cells of the base cell at a given radius(Km). How can I achieve this? If possible for the h3-go library as I am familiar with Go.
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The answer here depends on whether you want a true radius check, or a fast approximation using kRing. You can find a discussion and example code (in JavaScript) in this Observable notebook. The basic algorithm is
- Determine the grid cell radius corresponding to the true distance radius you want
- Call
kRing(origin, gridDistance)to get the set of cells within that gridDistance.
This is much faster than a true radius check, but slightly less accurate.
nrabinowitz
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Thank You very much for your reply. – Anjula Paulus Mar 07 '21 at 19:13
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1Happy to help! Remember to mark this as the answer if it answer your question :) – nrabinowitz Mar 07 '21 at 19:14