How do I create a 2D mesh of triangular elements?

What is the best way to create a 2D mesh of triangular elements given connectivity (T), and x, y coordinates? trimesh function perhaps?

Answer 1

[Matt J]

Yes. Or triplot().

[math5217]

Great, but do you know how T relates to x,y coordinates? Given a connectivity matrix T, x column vector, and y column vector. (e.g. How many rows of T per x and y for each triangular element?)

[Matt J]

For example,

T(j,:)=[2 5 7]

means that the j-th triangle in the mesh will be made up of the vertices (x(2),y(2)) , (x(5),y(5)) , and (x(7),y(7)).

[math5217]

That makes sense. What about meshgrid function? That needs to be used for trimesh.

[Matt J]

No, it does not.

[math5217]

Got a mesh plot. Thanks for the help.

[Matt J]

You are quite welcome, but please Accept-click the answer to indicate that your problem has been resolved.