-arcEdge1 = MakeArc(circlePoint1, MakeVertex(cx , cy, cz-rayon), circlePoint2)
-arcEdge2 = MakeArc(circlePoint2, MakeVertex(cx+rayon, cy, cz ), circlePoint3)
-arcEdge3 = MakeArc(circlePoint3, MakeVertex(cx , cy, cz+rayon), circlePoint4)
-arcEdge4 = MakeArc(circlePoint4, MakeVertex(cx-rayon, cy, cz ), circlePoint1)
+arcEdge1 = geompy.MakeArc(circlePoint1, geompy.MakeVertex(cx , cy, cz-rayon), circlePoint2)
+arcEdge2 = geompy.MakeArc(circlePoint2, geompy.MakeVertex(cx+rayon, cy, cz ), circlePoint3)
+arcEdge3 = geompy.MakeArc(circlePoint3, geompy.MakeVertex(cx , cy, cz+rayon), circlePoint4)
+arcEdge4 = geompy.MakeArc(circlePoint4, geompy.MakeVertex(cx-rayon, cy, cz ), circlePoint1)