Thank you Rahul for the answer.
I'm currently using Hyperview 2017 and I've asked output on bot CQUAD4 and CTRIA3 elements, but I'm not able to contour plot corner results.
T&T 1284 is useful when using Hypergraph, but I don't understand how can be extended to Hyperview module.
Can you explain better the solutions?
Thank you again,
Giulio