geoarea | R Documentation |
vector of areas of polygons in map
geoarea(MAP, proj=NULL, ncut=10)
MAP |
Map structure |
proj |
projection |
ncut |
minimum number of points in polygon |
Uses sf function. If proj is NULL then the project is reset to UTM spherical for each element seperately to calculate the area in km. ncut is used to eliminate area calculations with strokes less than the specified number.
vector of areas
areas smaller than a certain tolerance are NA
Jonathan M. Lees<jonathan.lees@unc.edu>
sf::st_area
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