MeshHierarchy¶

class dolfin.cpp.mesh.MeshHierarchy(*args)¶

Bases: object

Experimental implementation of a list of Meshes as a hierarchy.

Constructor with initial mesh.

Parameters:	const Mesh > mesh (std::shared_ptr<) –

coarsen()¶

Coarsen finest mesh by one level, based on markers (level n->n)

Parameters:	MeshFunction< bool > & markers (const) –
Return type:	std::shared_ptr< const MeshHierarchy >

coarsest()¶

Get the coarsest mesh of the MeshHierarchy .

Return type:	std::shared_ptr< const Mesh >

finest()¶

Get the finest mesh of the MeshHierarchy .

Return type:	std::shared_ptr< const Mesh >

rebalance()¶

Rebalance across processes.

Return type:	std::shared_ptr< Mesh >

refine()¶

Refine finest mesh of existing hierarchy, creating a new hierarchy (level n -> n+1)

Parameters:	MeshFunction< bool > & markers (const) –
Return type:	std::shared_ptr< const MeshHierarchy >

size()¶

Number of meshes.

Return type:	unsigned int

thisown¶: The membership flag

unrefine()¶

Unrefine by returning the previous MeshHierarchy (level n -> n-1) Returns NULL for a MeshHierarchy containing a single Mesh

Return type:	std::shared_ptr< const MeshHierarchy >

weight()¶

Calculate the number of cells on the finest Mesh which are descendents of each cell on the coarsest Mesh , returning a vector over the cells of the coarsest Mesh .

Return type:	std::vector< std::size_t >