Kevin Sahr

Note that cpi index subtraction and magnitude operations are basically per-digit table look-ups (plus some integer arithmetic for magnitude). So I think what you are describing is equivalent to subtracting...

#dfellis, I believe we are both talking about what is usually referred to as "metric distance". I was just pointing out that the H3 indexes (below the base cell) encode...

I don’t know why those functions are missing from the DLL (I don’t use windows), but _h3ToFaceIjk is defined in src/h3lib/lib/h3Index.c . > On Aug 18, 2022, at 7:20 PM,...

@mezcalhead I will look into that, though it might take some time. But is there any reason that you aren't using the **GDAL** **GeoJSON** `output_type`'s? For example: cell_output_type GDAL cell_output_gdal_format...

@mezcalhead I realized my answer is incorrect; the vertex order is set before the **GDAL** output sees it; so I do need to verify that it is being set correctly...

@mezcalhead I have verified that the **GDAL GeoJSON** polygons are output in CCW order. In the process I realized that the first vertex wasn't being repeated as the last vertex,...

Sorry about the closure bug; I've become too reliant on visual checks; the cells looked fine in a grid :) . If you let me know cell IDs on the...

Unfortunately I think it's more complicated than that. If you use all positive longitudes (0-360 degrees) then a similar problem occurs crossing the prime meridian (I verified this in geojson.io),...

@mezcalhead I finally implemented the fix @ultimagriever suggested above, giving you the option to handle cells that straddle the anti-meridian by outputting all positive (or all negative) longitudes for their...

> However on the math part, how does uber h3 go from 12 vertices + 20 triangles for icosahedron to 122 base cells ? ,,, > What is undocumented is...