I'm trying to get the outside shape of multipolygons. I've tried using ConvexHull but that returns a polygon with straight lines and I lose my border.
Is there a way to get the outermost border for a multipolygon?
My polygons are basically zip code boundaries and some of my areas result in multipolygons. If I split them all out to polygons, I'll have almost 4000 polygons and that takes forever to load on my Silverlight map. The multipolygons also take forever to load as well.
Any suggestions would be appreciated.
Thanks,
Tim