Comments (2)
I'm not clear on what's intended here. Is the Buffer Radius in grid distance? I.e. if I run countPoints(res, radius)
you want the count of all points that are both in the specific h3 cell and in its neighbors at a given radius?
This could look like:
function countPoints(geojson, h3Resolution, bufferRadius) {
const layer = {};
geojson.features.forEach(feature => {
const [lng, lat] = feature.geometry.coordinates;
const h3Index = h3.geoToH3(lat, lng, h3Resolution);
const neighbors = h3.kRing(h3Index, bufferRadius);
for (const neighbor of neighbors) {
layer[neighbor] = (layer[neighbor] || 0) + 1;
}
});
return normalizeLayer(layer, true);
}
from h3-js.
Yes, that is what I needed.
Thank you.
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