I'm looking for a C# implementation of the Concave hull (alpha shapes) algorithm. I already found several Java, Python and C++ implementation but no C# version. The other implementation are quite complicated and will take a lot of time to convert so I'm looking for a C# version which is already working.
I'm already using NetTopologySuite and can do a delaunay triangulation. This will produce a convex hull, which I don't need. Something like this is what I need: http://www.geosensor.net/phpws/index.php?module=pagemaster&PAGE_user_op=view_page&PAGE_id=13