Return the country FIR for a EUROCONTROL's Member State.

Usage

country_fir(firs, icao_id = "LI", fl = 0, merge = TRUE, exclude = NULL)

Arguments

firs: the relevant NM FIRs.
icao_id: optional, the ICAO ID of the relevant country, "LI" otherwise. It can be a regular expression, i.e. "LI|LF" for matching France and Italy.
fl: flight level at which assemble the composing polygons.
merge: Do you want to merge? (Default: TRUE).
exclude: List of IDs to filter out. It can be useful to use when only continental portion of FIR is of interest, i.e. exclude SANTA MARIA FIR for Portugal.

Value

An Simple Feature for the relevant country FIR.

Examples

if (FALSE) { # \dontrun{
# France
country_fir(pruatlas::firs_nm_406, "LF")
# EUROCONTROL's Member States
country_fir(pruatlas::firs_nm_406, icao_id = "E.|L.|UD|UG|GM|UK|GC")
# Consider only continental portion of Portugal FIR
country_fir(pruatlas::firs_nm_406, icao_id = "LP", exclude = c("LPPOFIR"))
} # }