Check cell identifiers

The default check is local and fast. It checks the two-digit base cell, resolution, hierarchy digits, and deleted pentagon subsequences. Strict validation additionally asks DGGRID (or dggridR for legacy cells) to resolve each syntactically valid identifier.

Usage

cell_is_valid(x, grid = NULL, strict = FALSE)

Arguments

x

A globalhex_cell or character vector.

grid

Grid definition for character input. NULL uses hex_grid(). The attached grid is always used for globalhex_cell input.

strict

Whether to confirm syntactically valid identifiers with the relevant backend.

Value

A logical vector with one value per identifier.

Examples

cell_is_valid(c("0203124", "99"))
#> [1]  TRUE FALSE
cell_is_valid(point_to_cell(c(0, 0), 5))
#> [1] TRUE