Test if object is polygon_df or NULL

Test if object is polygon_df or NULL

Usage

is_polygon_df(x)

Arguments

x

object

Value

TRUE if object is polygon_df or NULL

Examples

  df <- create_polygon_df(x = c(0, 0, 1, 1), y = c(0, 1, 1, 0))
  is_polygon_df(df)
#> [1] TRUE