a5_covering_to_supercells: Supercells of a covering

In a5R: 'A5' Discrete Global Grid System

Supercells of a covering

Description

a5_covering_to_supercells() gives, for each covering, the cells at a coarser resolution that contain the centre of at least one of its cells, such as the partitions of a store that hold an area's data. It matches a5_cell_to_supercell(a5_uncompact(x), resolution) without duplicates, but never builds the covering's cells.

Usage

a5_covering_to_supercells(x, resolution)

Arguments

x	An a5_covering vector.
resolution	Integer scalar target resolution, at or coarser than each covering's resolution.

Value

An a5_covering vector at resolution, the same length as x. NA where x is NA.

See Also

a5_cell_to_supercell()

Examples

area <- a5_polygon_to_cells(
  wk::wkt("POLYGON ((-3.3 55.9, -3.1 55.9, -3.1 56, -3.3 56, -3.3 55.9))"),
  resolution = 14
)
a5_uncompact(a5_covering_to_supercells(area, 6))

a5R documentation built on Oct. 19, 2026, 5:08 p.m.