Check whether a coordinate pair is within the polygon of a park unit

validate_coord() compares a coordinate pair (in decimal degrees) to the polygon for a park unit as provided through the NPS Units rest services. The function returns a value of TRUE or FALSE.

Usage

validate_coord(unit_code, lat, lon)

Arguments

unit_code: is the four-character unit code as designated by NPS.
lat: latitude, in decimal degrees.
lon: longitude, in decimal degrees.

Examples

if (FALSE) { # \dontrun{
validate_coord("OBRI", 36.07951, -84.65610)
} # }