MATLAB: How to do Delaunay Triangulation and return an adjacency matrix

Question

I want to get back Adjacency Matrix from Delaunay Triangulised object…How to do …..

Answer 1

If your goal in computing the adjacency matrix is to construct a graph object, you can also do that (a bit) more directly:

 % Construct tri as in Akira's code above
 g = digraph(tri, tri(:, [2 3 1]));
 A = adjacency(g);
 A = A | A';
 g = graph(A);
 plot(g)