Returns all cells whose centres fall within a great-circle distance of a given cell's centre.
Arguments
- cell
A single a5_cell value.
- radius
Numeric scalar, great-circle radius in metres.
Value
A compacted a5_cell vector.
See also
a5_grid_disk() for hop-based selection.
Examples
cell <- a5_lonlat_to_cell(-3.19, 55.95, resolution = 8)
a5_spherical_cap(cell, radius = 1000)
#> <a5_cell[1]>
#> [1] 6344b80000000000