Determine outer boundries of polygon from lat/lng point array
- by DustinDavis
I have a large array of lat/lng points. Could be up to 20k points. I'm plotting them using KML. What I want to do is to take only the outter most points and use them to draw a polygon instead. I already know how to draw a polygon in kml, I just need to figure out how to select only the outer most points of the group.
Any ideas? I'd like to have at…