Retrieve commune representative points around an area
get_com_point.RdComputes centroid points from commune boundary polygons, optionally restricted to a graphical extent.
Value
An sf object of type POINT representing commune centroids.
Returns NULL if no commune intersects the input area.
Details
The function retrieves commune polygons using get_com_poly(),
then computes their centroids. When graphic = TRUE, centroids
are calculated from the clipped geometries to ensure points
fall within the display extent.