+ ## Generates new elements by extrusion along the normal to a discretized surface or wire
+ # @param Elements container of elements to extrude;
+ # it can be Mesh, Group, Sub-mesh, Filter or list of IDs;
+ # Only faces can be extruded so far. Sub-mesh sould be a sub-mesh on geom faces.
+ # @param StepSize length of one extrusion step (the total extrusion
+ # length will be \a NbOfSteps * \a StepSize ).
+ # @param NbOfSteps number of extrusion steps.
+ # @param ByAverageNormal if True each node is translated by \a StepSize
+ # along the average of the normal vectors to the faces sharing the node;
+ # else each node is translated along the same average normal till
+ # intersection with the plane got by translation of the face sharing
+ # the node along its own normal by \a StepSize.
+ # @param UseInputElemsOnly to use only \a Elements when computing extrusion direction
+ # for every node of \a Elements.
+ # @param MakeGroups forces generation of new groups from existing ones.
+ # @param Dim dimension of elements to extrude: 2 - faces or 1 - edges. Extrusion of edges
+ # is not yet implemented. This parameter is used if \a Elements contains
+ # both faces and edges, i.e. \a Elements is a Mesh.
+ # @return the list of created groups (SMESH_GroupBase) if \a MakeGroups=True,
+ # empty list otherwise.
+ # @ingroup l2_modif_extrurev
+ def ExtrusionByNormal(self, Elements, StepSize, NbOfSteps,
+ ByAverageNormal=False, UseInputElemsOnly=True, MakeGroups=False, Dim = 2):
+ unRegister = genObjUnRegister()
+ if isinstance( Elements, Mesh ):
+ Elements = Elements.GetMesh()
+ if isinstance( Elements, list ):
+ if not Elements:
+ raise RuntimeError, "List of element IDs is empty!"
+ if not isinstance( Elements[0], int ):
+ raise RuntimeError, "List must contain element IDs and not %s"% Elements[0]
+ Elements = self.GetIDSource( Elements, SMESH.ALL )
+ unRegister.set( Elements )
+ StepSize,NbOfSteps,Parameters,hasVars = ParseParameters(StepSize,NbOfSteps)
+ self.mesh.SetParameters(Parameters)
+ return self.editor.ExtrusionByNormal(Elements, StepSize, NbOfSteps,
+ UseInputElemsOnly, ByAverageNormal, MakeGroups, Dim)
+
