planRoute: Create a flight plan route between two airports.
In thlytras/rfgfs: Flight planner and companion package for FlightGear

Description Usage Arguments Value Examples

This function determines the shortest route between two points (navfixes/navaids)

1 2	planRoute(aptFrom, aptTo, fixFrom = NA, fixTo = NA, fixes = character(), limitArc = TRUE, narrowArc = FALSE)

`aptFrom`	Departure airport (4-letter ICAO code).
`aptTo`	Destination airport (4-letter ICAO code).
`fixFrom`	Initial departure navfix (after SID procedure). If not supplied manually, the navfix nearest to the departure airport will be chosen automatically, using `getAptFix`.
`fixTo`	Final destination navfix (before STAR procedure). If not supplied manually, the navfix nearest to the destination airport will be chosen automatically, using `getAptFix`
`fixes`	Optional vector of intermediate navfixes. Use these to speed up the algorithm, or to manually adjust the desired route. If `NA`s are inserted between two navfixes, then the route is flown straight between them, without following ICAO runways.
`limitArc`	If TRUE, only search points at an angle of ±90 degrees towards the destination point in order to speed up the algorithm.
`narrowArc`	If TRUE (and also limitArc==TRUE), search at a narrower angle of ±45 degrees towards the destination point.

Returns a flight plan stored on a data.frame with the following columns:

fix: The name each point (airport/navaid/navfix) in the flight plan.
fixLat: Latitude of the point.
fixLon: Longitude of the point.
fullName: Full name
freq: Radio frequency (for navaids only).
range: Reception range (for navaids only).
elevation: Elevation (for navaids or airports).
dev: Deviation (for VOR stations).
magdecl: Magnetic declination at the point.
dist: Distance (in km, up to the next point in the plan).
course: Course (true) towards the next point.
magcourse: Course (magnetic) towards the next point.
awy: Airway identifier for the following segment (up to the next point in the plan), or SID/STAR.
baseFL: Base flight level for the following segment (up to the next point in the plan).
topFL: Top flight level for the following segment (up to the next point in the plan).
altawy: Alternative airway for the following segment, along with its permitted flight level range.

# Fly from Athens to Thessaloniki
plan1 <- planRoute("LGAV", "LGTS")
print(plan1)

# Manually choose appropriate departure and approach fixes
# (by referring to the relevant approach plates)
plan2 <- planRoute("LGAV", "LGTS", fixFrom="ABLON", fixTo="LEKPO")
print(plan2)

# Fly from Athens to Innsbrück
plan3 <- planRoute("LGAV", "LOWI", "KOR", "BRENO")

# Follow a different route, via Thessaloniki and Belgrade
plan4 <- planRoute("LGAV", "LOWI", "ABLON", "RTT", fixes=c("TSL","ORVAN"))

# Divert a bit from the ICAO airway (OMIRO -> SKP -> BAMOS -> AGISA)
# and fly over PELAS instead, i.e. over Alonissos instead of Skopelos island.
plan5 <- planRoute("LGAV", "LOWI", "ABLON", "RTT",
                   fixes=c("OMIRO", NA, "PELAS", NA, "AGISA", "TSL","ORVAN"))