+# Linear / quadratic
+
+# create mesh
+from mechanic import *
+
+# get linear and quadratic edges
+filter_linear = smesh_builder.GetFilter(SMESH.EDGE, SMESH.FT_LinearOrQuadratic)
+filter_quadratic = smesh_builder.GetFilter(SMESH.EDGE, SMESH.FT_LinearOrQuadratic, SMESH.FT_LogicalNOT)
+ids_linear = mesh.GetIdsFromFilter(filter_linear)
+ids_quadratic = mesh.GetIdsFromFilter(filter_quadratic)
+print("Number of linear edges:", len(ids_linear), "; number of quadratic edges:", len(ids_quadratic))
+
+# convert mesh to quadratic
+print("Convert to quadratic...")
+mesh.ConvertToQuadratic()
+
+# get linear and quadratic edges
+ids_linear = mesh.GetIdsFromFilter(filter_linear)
+ids_quadratic = mesh.GetIdsFromFilter(filter_quadratic)
+print("Number of linear edges:", len(ids_linear), "; number of quadratic edges:", len(ids_quadratic))
