Polygons updater (shiny module)

Update polygons displayed on a leaflet map using leafletProxy.

polygonsUpdater(input, output, session, proxy, poly, group = "group",
  ...)

Arguments

input	shiny server input object
output	shiny server output object
session	shiny server session object
proxy	Leaflet proxy which manages a connected leaflet map.
poly	A reactive containing a polygon to be displayed on the leaflet map.
group	Group of polygons we want to update.
...	Additional parameters of addPolygons function.

Value

None. Invoked for the side-effect of creating an observer, which manages current set of polygons on a leaflet map using leaflet proxy.

Note

This is a server-only module with no UI component.