delaunay

Delaunay triangulation in Lua.

Based on Delaunay triangulation library by Yonaba (roland.yonaba@gmail.com).

Deviations from original library:

1. Triangulation function takes array instead of tuple;
2. Use LuaJIT FFI if possible( turnable off ).

Using FFI increases performance roughly x2.

Using FFI reduces memory usage approx. on 40-50%. It's possible to futher decrese memory use by setting:

_G.DELAUNAY_FFI_TYPE = 'float'

in this case memory usage drops on 60-70%. Note that you must set it before the library is loaded and shouldn't change it later.