--- /dev/null
+# Extrusion
+
+# There is a series of Extrusion Along Line methods added at different times;
+# a fully functional method is ExtrusionSweepObjects()
+
+import math
+
+import salome
+salome.salome_init_without_session()
+
+import SMESH
+from salome.smesh import smeshBuilder
+
+smesh_builder = smeshBuilder.New()
+
+# create an empty mesh
+mesh = smesh_builder.Mesh()
+
+# add a node
+mesh.AddNode( 0.,0.,0. )
+
+# extrude a node into a line of 10 segments along the X axis
+ids = mesh.GetNodesId()
+stepVector = [1.,0.,0.]
+nbSteps = 10
+mesh.ExtrusionSweep( ids, stepVector, nbSteps, IsNodes=True )
+
+# create some groups
+lastNode = mesh.GetNodesId()[-1]
+lastNodeGroup = mesh.MakeGroupByIds( "node %s"% lastNode, SMESH.NODE, [lastNode])
+lineGroup = mesh.MakeGroupByIds( "line", SMESH.EDGE, mesh.GetElementsId() )
+
+# rotate the segments around the first node to get a mesh of a disk quarter
+axisZ = [0.,0.,0., 0.,0.,1.]
+groups = mesh.RotationSweepObject( lineGroup, axisZ, math.pi/2., 10, 1e-3, MakeGroups=True, TotalAngle=True )
+
+# extrude all faces into volumes
+obj = mesh
+stepVector = [0.,0.,-1.]
+nbSteps = 5
+groups = mesh.ExtrusionSweepObject2D( obj, stepVector, nbSteps, MakeGroups=True )
+
+# remove all segments created by the last command
+for g in groups:
+ if g.GetType() == SMESH.EDGE:
+ mesh.RemoveGroupWithContents( g )
+
+# extrude all segments into faces along Z
+obj = mesh
+stepVector = [0.,0.,1.]
+mesh.ExtrusionSweepObject1D( obj, stepVector, nbSteps )
+
+# extrude a group
+obj = mesh.GetGroupByName( "line_extruded", SMESH.FACE )[0]
+stepVector = [0,-5.,0.]
+nbSteps = 1
+mesh.ExtrusionSweepObject( obj, stepVector, nbSteps )
+
+# extrude all nodes and triangle faces of the disk quarter, applying a scale factor
+diskGroup = mesh.GetGroupByName( "line_rotated", SMESH.FACE )[0]
+crit = [ smesh_builder.GetCriterion( SMESH.FACE, SMESH.FT_ElemGeomType,'=',SMESH.Geom_TRIANGLE ),
+ smesh_builder.GetCriterion( SMESH.FACE, SMESH.FT_BelongToMeshGroup,'=', diskGroup )]
+trianglesFilter = smesh_builder.GetFilterFromCriteria( crit )
+
+nodes = [ diskGroup ]
+edges = []
+faces = [ trianglesFilter ]
+stepVector = [0,0,1]
+nbSteps = 10
+mesh.ExtrusionSweepObjects( nodes, edges, faces, stepVector, nbSteps, scaleFactors=[0.5], linearVariation=True )
+
+# extrude a cylindrical group of faces by normal
+cylGroup = None
+for g in mesh.GetGroups( SMESH.FACE ):
+ if g.GetName().startswith("node "):
+ cylGroup = g
+ break
+
+elements = cylGroup
+stepSize = 5.
+nbSteps = 2
+mesh.ExtrusionByNormal( elements, stepSize, nbSteps )
