polygonByConcave polygonByConvex

[phtj]

Help for these functions is not so clear.

byConcave says it can return a MultiPolygon, is this this the case? For our functions I think we are trying to avoid MultiPolygons?

byConvex does not say what it returns, it just says a convex hull. Is it a single polygon feature?

[chenkianwee]

I have used it once, it gave me a polygon. I think it will only give multi-polygon when you have multiple clusters of points spaced apart ?