Get parent cell

Returns the parent cell at a coarser resolution.

Usage

get_parent(cell_id, grid, levels = 1L)

Arguments

cell_id

Numeric vector of cell IDs

grid

A HexGridInfo or HexData object

levels

Number of levels up (default 1)

Value

Numeric vector of parent cell IDs

Examples

grid <- hex_grid(resolution = 10)
child_cells <- lonlat_to_cell(c(0, 10), c(45, 50), grid)
parent_cells <- get_parent(child_cells, grid)