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Average cell edge length at a given resolution

Source: R/info.R
a5_cell_edge_length_avg.Rd

Returns the average length of a cell edge at the given resolution(s). Individual edge lengths vary from this average by roughly +/-10%, depending on the cell's shape and its position on the globe. Use this for a quick estimate of cell size when choosing a resolution; use a5_cell_to_boundary() to measure a specific cell.

Usage

a5_cell_edge_length_avg(resolution, units = "m")

Arguments

resolution

Integer vector of resolutions (0–30).

units

Character scalar specifying the output length unit (default "m"). Any unit convertible from m via units::set_units() is accepted (e.g. "km", "mi"). If NULL, the length is returned as a numeric vector in metres.

Value

A units::units vector of average edge lengths, or a numeric vector if units = NULL.

See also

a5_cell_area()

Examples

a5_cell_edge_length_avg(0:5)
#> Units: [m]
#> [1] 4649142.3 4320430.2 1190173.8  597565.2  299147.1  149610.0
a5_cell_edge_length_avg(10, units = "km")
#> 4.675881 [km]