How to extract Ids of all the nodes on a face (surface) using Python scripting
Below is a sample script to do that (it takes the first named selection):
model=ExtAPI.DataModel.Project.Model ns=model.NamedSelections.Children f=ns[0].Location.Ids meshData = ExtAPI.DataModel.Project.Model.Analyses[0].MeshData faceMesh = meshData.MeshRegionById(f[0]) nodes=faceMesh.NodeIds