How to make delaunayTriangulation object from points and connectivity in 3D?

I am trying the tetramesh function. Before I plot the tetraheron mesh, I need to store the mesh in an delaunayTriangulation object. I have the points and connectivities. I coded as below.

DT = delaunayTriangulation();
DT.Points=node;
DT.ConnectivityList=elem;

But I found the error.

Cannot assign values to the triangulation. 

In another way, "DT = delaunayTriangulation(P,C)".

DT = delaunayTriangulation(node,elem);

Came the error,

Invalid data format for delaunayTriangulation.

I think the connectivities must be 3 column for triangles, not tetrahedrons.

So, is it anyother way to create a delaunayTriangulation object for tetraheron to use tetramesh?

Answer 1

[KSSV]

You should use the function triangulation for this. Read about this.

https://in.mathworks.com/help/matlab/ref/triangulation.html