title: Draw a polyline on the map using GMap.net
body: <p>Yep, I am not the first who is asking, but I didn't found an answer (maybe, because my english is bad). How to draw a polyline on a map? Not a route (direction), but just a polyline, like in JS Google Maps API with function Polyline. I can not understand.</p>
  
  <p>Thanks anyway.</p>