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Return parent cell ID for each input cell

Source: R/dggridR.R
dgparent.Rd

For each cell ID in cells at the current grid resolution, returns the ID of its parent cell at resolution dggs\$res - 1. Only hexagonal grids are supported.

Usage

dgparent(dggs, cells)

Arguments

dggs

A dggs object from dgconstruct(). The parent cells will be at dggs\$res - 1.

cells

Integer vector of cell sequence numbers (SEQNUM)

Value

A data frame with columns seqnum (the input cell) and parent (the parent cell ID at resolution - 1).

Examples

library(dggridR)
dgparent(dgconstruct(res=4), c(1, 2))
#>   seqnum parent
#> 1      1      1
#> 2      2      2