5 adds to surface files. (but does not intersect or anything)
8 Boolean operations (add, or, xor) on closed surfaces. Probably not working.
11 checks surface for incorrect topology. Checks normals of neighbouring faces.
14 Stan Melax coarsening algorithm
17 Converts surfaces to/from various formats
20 Finds nearest vertex and face to given point.
22 surfaceMeshTriangulate
23 Triangulate external facses of mesh and write as surface.
26 Explicit point merge of surface.
29 Orient normals on (closed) surface.
32 Laplacian smoothing on surface vertices
38 Applies region information of surfaces to mesh. Each external face of mesh
39 gets region number of nearest surface triangle.