This function is based on the function shotGroups::getMinCircle() that uses the Skyum algorithm based on the convex hull. http://www.cs.au.dk/~gerth/slides/sven14.pdf
makeCircle(spdf, crs = NULL)
spdf | an object of class ‘sf’ or ‘SpatialPointsDataFrame’ with defined CRS. |
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crs | a number defining a projected CRS. It is very important
that the selected CRS is accurate in the study area. This is not the CRS for
the argument 'spdf' which should be defined internally. This is the CRS used to
make a flat circle. Some UTM variant is recommended. See |
a polygon object of class ‘sf’ with geodesic coordinates in WGS84 (ESPG:4326).