Check and correct spatial data format — check

Converts spatial data to a sf object

Usage

check_spatdat(spatdat, lon = NULL, lat = NULL, id = NULL)

Arguments

spatdat: Spatial data containing information on fishery management or regulatory zones.
lon: Longitude variable in spatdat. This is required for csv files or if spatdat is a dataframe (i.e. is not a sf or sp object).
lat: Latitude variable in spatdat. This is required for csv files or if spatdat is a dataframe (i.e. is not a sf or sp object).
id: Polygon ID column. This is required for csv files or if spatdat is a dataframe (i.e. is not a sf or sp object).

Details

This function checks whether spatdat is a sf object and attempts to convert it if not. It also applies clean_spat which fixes certain spatial issues such as invalid or empty polygons, whether a projected CRS is used (converts to WGS84 if detected), and if longitude should be shifted to Pacific view (0-360 format) to avoid splitting the Alaska region during plotting.