Salome provides a vast specter of mesh modification and transformation operations, giving the possibility to:

Add mesh elements from nodes to polyhedrons at an arbitrary place in the mesh.
Add quadratic mesh elements from quadratic segments to quadratic hexahedrons at an arbitrary place in the mesh.
Remove any existing mesh elements and nodes.
Translate in the indicated direction the mesh or some of its elements.
Rotate by the indicated axis and angle the mesh or some of its elements.
Scale the mesh or some of its elements.
Mirror the mesh through a point, a vector or a plane of symmetry.
Duplicate nodes or/and Elements. Duplication of nodes can be useful to emulate a crack in the model.
Unite meshes by sewing free borders, border to side or side elements.
Merge Nodes, coincident within the indicated tolerance.
Merge Elements based on the same nodes.
Move Nodes to an arbitrary location with consequent transformation of all adjacent elements.
Invert an edge between neighboring triangles.
Unite two triangles.
Unite several adjacent triangles.
Change orientation of the selected elements.
Orient faces by several means.
Cut a quadrangle into two triangles.
Split volumic elements into tetrahedra or prisms.
Split bi-quadratic elements into linear ones without creation of additional nodes.
Smooth elements, reducung distortions in them by adjusting the locations of nodes.
Create an extrusion along a vector or by normal to a discretized surface.
Create an extrusion along a path.
Create elements by revolution of the selected nodes and elements.
Apply pattern mapping.
Convert linear mesh to quadratic, or vice versa.
Generate boundary elements.
Generate flat elements on group boundaries or on faces.
Cut a tetrahedron mesh by a plane.

Note: It is possible to modify the mesh of a lower dimension before generation of the mesh of a higher dimension.

Note: It is possible to use the variables defined in the SALOME NoteBook to specify the numerical parameters used for modification of any object.