FunctionAssigner.h¶

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class FunctionAssigner¶

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.

FunctionAssigner(std::shared_ptr<const FunctionSpace> receiving_space, std::shared_ptr<const FunctionSpace> 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(std::vector<std::shared_ptr<const FunctionSpace>> receiving_spaces, std::shared_ptr<const FunctionSpace> 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 (std::vector<FunctionSpace>): The receiving function spaces
assigning_space (FunctionSpace): The assigning function space

FunctionAssigner(std::shared_ptr<const FunctionSpace> receiving_space, std::vector<std::shared_ptr<const FunctionSpace>> 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 (std::shared_ptr<FunctionSpace>): The receiving function space
assigning_spaces (std::vector<std::shared_ptr<FunctionSpace> >): The assigning function spaces

void assign(std::shared_ptr<Function> receiving_func, std::shared_ptr<const Function> assigning_func) const¶

Assign one function to another

Arguments

receiving_func (std::shared_ptr<Function>): The receiving function
assigning_func (std::shared_ptr<Function>): The assigning function

void assign(std::shared_ptr<Function> receiving_func, std::vector<std::shared_ptr<const Function>> assigning_funcs) const¶

Assign several functions to sub functions of a mixed receiving function

Arguments

receiving_func (std::shared_ptr<Function>): The receiving mixed function
assigning_funcs (std::vector<std::shared_ptr<Function> >): The assigning functions

void assign(std::vector<std::shared_ptr<Function>> receiving_funcs, std::shared_ptr<const Function> assigning_func) const¶

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 (std::shared_ptr<Function>): The assigning mixed function

std::size_t num_assigning_functions() const¶: Return the number of assigning functions

std::size_t num_receiving_functions() const¶: Return the number of receiving functions