drawPolygon: Create the polygon for the study area by drawing into a world map
Description
Create the polygon for the study area by drawing into a world map
Usage
drawPolygon(lat = 0, lng = 0, zoom = 1, editor = "leafpm")
Arguments
lat
initial geographical coordinate for latitude in decimal degrees (EPSG:4326)
for the map to start at. Default = “0”.
lng
initial geographical coordinate for longitude in decimal degrees (EPSG:4326)
for the map to start at. Default = “0”.
zoom
initial zoom level for the map. Range 1 - 19. Default = “1”.
editor
type of editor for the drawing tools. Options are “leafpm” (default)
and “leaflet.extras”. Requires additional packages leafpm
and
leaflet.extras
, respectively.
Value
an object of class ‘sf’ with a polygon (only the first one drawn)
with geodesic coordinates in WGS84 (ESPG:4326).
Examples
Run this code# NOT RUN {
if(interactive()){
polygon <- drawPolygon()
}
# }
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