Tendril unbranched or bifurcate. Inflorescence usually a polychasium. Seeds elliptic, obovoid-elliptic, or obtriangular, surface smooth, corrugated, or with strumose protuberance or ribs.
The goal of the mesh optimization algorithm is to re duce the number of the triangles in the mesh,and keep the accuracy of the interp olation at the same time.