--- /dev/null
+# Lying on Geom
+
+# create mesh
+from mechanic import *
+
+# get all faces at least one node of each lies on the face sub_face3
+filter = smesh_builder.GetFilter(SMESH.FACE, SMESH.FT_LyingOnGeom, sub_face3)
+ids = mesh.GetIdsFromFilter(filter)
+print("Number of faces at least one node of each lies on sub_face3:", len(ids))