Convex_20 — Convex_20 • SDMWorkflows

Creates a 20% expanded convex hull from a set of coordinates.

Usage

Convex_20(
  DF,
  lon = "decimalLongitude",
  lat = "decimalLatitude",
  proj = "+proj=longlat +datum=WGS84 +no_defs"
)

Arguments

DF: The dataframe containing the coordinates.
lon: The name of the longitude column in the dataframe.
lat: The name of the latitude column in the dataframe.
proj: The projection of the coordinates.

Value

A polygon representing the expanded convex hull by 20%.

Examples


DF <- data.frame(decimalLongitude =
      c(23.978543, 23.785003, 11.485,  -2.054027, 12.9069),
                 decimalLatitude =
       c(38.088876, 60.238213, 48.165, 53.33939, 56.80782))

Convex_20(DF, lon = "decimalLongitude", lat = "decimalLatitude",
proj = "+proj=longlat +datum=WGS84 +no_defs")