checkForATTAINSGeo

Check to see if any ATTAINS assessment unit geometry was return as a result of TADA_CreateATTAINSAUMLCrosswalk or TADA_CreateAUMLCrosswalk. Will stop and return an error message if no ATTAINS assessment unit geometry is present. For use in TADA leaflet mapping functions that rely on ATTAINS geometry.

Usage

checkForATTAINSGeo(
  points_layer = NULL,
  lines_layer = NULL,
  polygons_layer = NULL
)

Arguments

points_layer

Optional data frame argument. Contains the data required to map ATTAINS assessment unit point geometry. When points_layer = NULL, the point assessment units data are not used when searching for missing raw features. Default = NULL.

lines_layer

Optional data frame argument. Contains the data required to map ATTAINS assessment unit line geometry. When lines_layer = NULL, the line assessment units data are not used when searching for missing raw features. Default = NULL.

polygons_layer

Optional data frame argument. Contains the data required to map ATTAINS assessment unit polygon geometry. When polygons_layer = NULL, the polygon assessment units data are not used when searching for missing raw features. Default = NULL.

Value

The function print a message if there is no ATTAINS assessment unit geometry.