FBtri = freeBoundary(TR)
[FBtri,FBpoints] = freeBoundary(TR)
returns the free boundary facets of FBtri
= freeBoundary(TR
)TR.ConnectivityList
.
A facet in TR
is on the free boundary if it is
referenced by only one triangle or tetrahedron.
also
returns a matrix containing the vertices of the free boundary facets.[FBtri,FBpoints]
= freeBoundary(TR
)
 Triangulation representation, see 

Triangulation connectivity list, returned as a matrix that contains the following information:
The vertex IDs in


Free boundary points, returned as a matrix containing the coordinates
of the vertices of the free boundary facets. Each row of 
A row number of the matrix, TR.Points
or FBpoints
.
Use this ID to refer a specific vertex in the triangulation.