MeshDisplacement

class dolfin.cpp.mesh.MeshDisplacement(*args)

Bases: dolfin.cpp.function.Expression

This class encapsulates the CG1 representation of the displacement of a mesh as an Expression. This is particularly useful for the displacement returned by mesh smoothers which can subsequently be used in evaluating forms. The value rank is 1 and the value shape is equal to the geometric dimension of the mesh.

Overloaded versions

• MeshDisplacement(mesh)

  Create MeshDisplacement of given mesh

  Arguments

  mesh (Mesh)

  Mesh to be displacement defined on.

• MeshDisplacement(mesh_displacement)

  Copy constructor

  Arguments

  mesh_displacement (MeshDisplacement)

  Object to be copied.

sub()

Overloaded versions

• operator[](i)

  Extract subfunction In python available as MeshDisplacement.sub(i)

  Arguments

  i (int)

  Index of subfunction.

• operator[](i)

  Extract subfunction. Const version

  Arguments

  i (int)

  Index of subfunction.

thisown

The membership flag