Surface Evolver Documentation - Tutorial Surface Evolver Documentation Surface Evolver Tutorial To get started using the Surface Evolver, read the Basic Concepts section for a quick introduction, then try the examples. The basic geometric elements used to represent a surface are vertices, edges, facets, and bodies.
Vertices are points in space.
Edges are straight line segments joining pairs of vertices. Facets are flat triangles bounded by three edges. A surface is a union of facets. A body is defined by giving its bounding facets. There are no limitations on how many edges may share a vertex nor on how many facets may share an edge.