Convert coordinates to PRIO-GRID cell IDs — pg_id_from_coords • priogridR

Assigns coordinates to cells in a configured PRIO-GRID. Coordinates are transformed to the grid projection before cell lookup.

Usage

pg_id_from_coords(
  longitude,
  latitude,
  crs = 4326,
  outside = c("NA", "error"),
  config = priogrid::pg_current_config()
)

Arguments

longitude, latitude: Numeric coordinate vectors. Vectors must have equal lengths, or one may have length one.
crs: Coordinate reference system of the supplied coordinates. Any value accepted by sf::st_crs() may be used.
outside: How coordinates outside the configured grid should be handled: return NA or raise an error.
config: A PRIO-GRID configuration object.

Value

An integer vector of PRIO-GRID cell IDs.

Examples

config <- priogrid::pg_config(nrow = 18, ncol = 36)
pg_id_from_coords(0, 0, config = config)
#> [1] 307