I'm trying to make curve index which represents how curvy or how edgy the polyline is on the map. For example index might be 0 on straight line and high as line curves. I tried to use sum of absolutes of 2 times differential from Y(latitude)/X(longtitude) which is diff(diff(Y))/diff(X)^2 in R. But I'm not so sure it can really satisfy what I'm trying to achieve. Is there concept which is related to this?
2026-04-01 10:06:58.1775038018
How to measure how curvy the polyline is?
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