If I use patch to display a mesh, I can color code the mesh surface by specifying the nodal values. However, from finite element methods, frequently I only have element values (i.e., scalar values for each element, but not for each node). In this case, how can I efficiently display the mesh in Matlab and color code the surface then? Can I color code directly each patch instead of the node?
If not, then I could interpolate values on the nodes, and then do display using patch. Then my other question is, when I open the graphics handle, which field corresponds to the scalar values I used for the node then?