--- /dev/null
+# Editing of a mesh
+
+import salome
+salome.salome_init_without_session()
+
+from salome.geom import geomBuilder
+from salome.smesh import smeshBuilder
+
+geom_builder = geomBuilder.New()
+smesh_builder = smeshBuilder.New()
+
+def PrintMeshInfo(theMesh):
+ aMesh = theMesh.GetMesh()
+ print("Information about mesh:")
+ print("Number of nodes : ", aMesh.NbNodes())
+ print("Number of edges : ", aMesh.NbEdges())
+ print("Number of faces : ", aMesh.NbFaces())
+ print("Number of volumes : ", aMesh.NbVolumes())
+ pass
+
+# create a box
+box = geom_builder.MakeBox(0., 0., 0., 20., 20., 20.)
+geom_builder.addToStudy(box, "box")
+
+# select one edge of the box for definition of a local hypothesis
+subShapeList = geom_builder.SubShapeAll(box, geom_builder.ShapeType["EDGE"])
+edge = subShapeList[0]
+name = geom_builder.SubShapeName(edge, box)
+geom_builder.addToStudyInFather(box, edge, name)
+
+# create a mesh
+tria = smesh_builder.Mesh(box, "Mesh 2D")
+algo1D = tria.Segment()
+hyp1 = algo1D.NumberOfSegments(3)
+algo2D = tria.Triangle()
+hyp2 = algo2D.MaxElementArea(10.)
+
+# create a sub-mesh
+algo_local = tria.Segment(edge)
+hyp3 = algo_local.Arithmetic1D(1, 6)
+hyp4 = algo_local.Propagation()
+
+# compute the mesh
+tria.Compute()
+PrintMeshInfo(tria)
+
+# remove a local hypothesis
+tria.RemoveHypothesis(hyp4, edge)
+
+# compute the mesh
+tria.Compute()
+PrintMeshInfo(tria)
+
+# change the value of the 2D hypothesis
+hyp2.SetMaxElementArea(2.)
+
+# compute the mesh
+tria.Compute()
+PrintMeshInfo(tria)
