MeshDisplacement.h¶

Note

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

class MeshDisplacement¶

Parent class(es)

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.

explicit MeshDisplacement(std::shared_ptr<const Mesh> mesh)¶

Create MeshDisplacement of given mesh

@param mesh (Mesh): Mesh to be displacement defined on.

MeshDisplacement(const MeshDisplacement &mesh_displacement)¶

Copy constructor

@param mesh_displacement (MeshDisplacement): Object to be copied.

Function &operator[](const std::size_t i)¶

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

@param i (std::size_t): Index of subfunction.

const Function &operator[](const std::size_t i) const¶

Extract subfunction. Const version

@param i (std::size_t): Index of subfunction.

void eval(Array<double> &values, const Array<double> &x, const ufc::cell &cell) const¶

Evaluate at given point in given cell.

@param values (Array<double>): The values at the point.
@param x (Array<double>): The coordinates of the point.
@param cell (ufc::cell): The cell which contains the given point.

void compute_vertex_values(std::vector<double> &vertex_values, const Mesh &mesh) const¶

Compute values at all mesh vertices.

@param vertex_values (Array<double>): The values at all vertices.
@param mesh (Mesh): The mesh.