--- /dev/null
+# Element Diameter 3D
+
+from mechanic import *
+
+# Criterion : ELEMENT DIAMETER 3D > 10
+mel_3d_margin = 10
+
+aFilter = smesh_builder.GetFilter(SMESH.FACE, SMESH.FT_MaxElementLength3D, SMESH.FT_MoreThan, mel_3d_margin)
+
+anIds = mesh.GetIdsFromFilter(aFilter)
+
+# print the result
+print("Criterion: Element Diameter 3D Ratio > ", mel_3d_margin, " Nb = ", len(anIds))
+j = 1
+for i in range(len(anIds)):
+ if j > 20: j = 1; print("")
+ print(anIds[i], end=' ')
+ j = j + 1
+ pass
+print("")
+
+# create a group
+aGroup = mesh.CreateEmptyGroup(SMESH.FACE, "Element Diameter 3D > " + repr(mel_3d_margin))
+aGroup.Add(anIds)