Convex Hull over GBIF "points"

I found yesterday a post where Convex Hull was explained and the source code made available for Javascript and PHP. "The convex hull may be easily visualized by imagining an elastic band stretched open to encompass the given points; when released, it will assume the shape of the required convex hull." (from wikipedia). I talked about it months ago with Tim and I thought that would be fun to adapt it to AS3 and use it in BiodiversityAtlas. Months ago we talked that one way to create "polygons" from gbif straight points was to do a Convex Hull over them.

But when finished I realized it might dont make much sense... the convex hull over GBIF points always display enormous polygons over land and water that dont look very nice. Look at the next picture.

This is Puma concolor convex hull over GBIF data. Well this is exactly what a convex Hull is so I am not sure what I was expecting.

There is other types of convex hull like the Orthogonal convex hull that might make more sense in some scenarios, but in general this does not look good to me.

By the way, the convex hull algorithm i am using, quickhull, is amazingly fast.

If you want to try for yourself I have uploaded the test app for you to try. If anybody is interested in the source code let me know and I will post it.

Launch application.