FunctionAssigner

class dolfin.cpp.function.FunctionAssigner(*args)

Bases: object

This class facilitate assignments between Function and sub Functions. It builds and caches maps between compatible dofs. These maps are used in the assignment methods which perform the actual assignment. Optionally can a MeshFunction be passed together with a label, facilitating FunctionAssignment over sub domains.

Overloaded versions

• FunctionAssigner(receiving_space, assigning_space)

  Create a FunctionAssigner between functions residing in the same type of FunctionSpace. One or both functions can be sub functions.

  Arguments

  receiving_space (FunctionSpace)

  The function space of the receiving function

  assigning_space (FunctionSpace)

  The function space of the assigning function

• FunctionAssigner(receiving_spaces, assigning_space)

  Create a FunctionAssigner between one mixed function (assigning) and several functions (receiving). The number of receiving functions must sum up to the number of sub functions in the assigning mixed function. The sub spaces of the assigning mixed space must be of the same type ans size as the receiving spaces.

  Arguments

  receiving_spaces (list of FunctionSpace)

  The receiving function spaces

  assigning_space (FunctionSpace)

  The assigning function space

• FunctionAssigner(receiving_space, assigning_spaces)

  Create a FunctionAssigner between several functions (assigning) and one mixed function (receiving). The number of sub functions in the assigning mixed function must sum up to the number of receiving functions. The sub spaces of the receiving mixed space must be of the same type ans size as the assigning spaces.

  Arguments

  receiving_space (FunctionSpace)

  The receiving function space

  assigning_spaces (std::vector<std::shared_ptr<FunctionSpace> >)

  The assigning function spaces

assign()

Overloaded versions

• assign(receiving_func, assigning_func)

  Assign one function to another

  Arguments

  receiving_func (Function)

  The receiving function

  assigning_func (Function)

  The assigning function

• assign(receiving_func, assigning_funcs)

  Assign several functions to sub functions of a mixed receiving function

  Arguments

  receiving_func (Function)

  The receiving mixed function

  assigning_funcs (std::vector<std::shared_ptr<Function> >)

  The assigning functions

• assign(receiving_funcs, assigning_func)

  Assign sub functions of a single mixed function to single receiving functions

  Arguments

  receiving_funcs (std::vector<std::shared_ptr<Function> >)

  The receiving functions

  assigning_func (Function)

  The assigning mixed function

num_assigning_functions()

Return the number of assigning functions

num_receiving_functions()

Return the number of receiving functions

thisown None

The membership flag