Umbrella mesh smoother with both uniform and scale-dependent neighbor averaging For more information see More...

#include <umbrella_smoother.hpp>

Inheritance diagram for FEAT::Geometry::UmbrellaSmoother< MeshType_ >:

Public Types
typedef MeshType_::CoordType	CoordType

typedef MeshType_::VertexSetType	VertexSetType

Public Member Functions
	UmbrellaSmoother (MeshType_ &mesh)
	Constructor. More...

void	compile ()

void	smooth (Index max_iter, CoordType tol, bool uniform=true)
	Smooths the mesh with an umbrella operator. More...

Static Public Attributes
static constexpr int	shape_dim = MeshType_::shape_dim

static constexpr int	world_dim = MeshType_::world_dim

Protected Member Functions
virtual void	_calc_boundary_facets ()
	determines for each facet whether it is a boundary facet or an inner facet More...

virtual void	_calc_boundary_vertices ()
	determines for each vertex whether it is a boundary vertex or an inner vertex More...

virtual void	_calc_max (CoordType &)
	calculates global maximum over all processes; is overridden in DistributedUmbrellaSmoother More...

virtual void	_synchronize (std::vector< Tiny::Vector< CoordType, world_dim > > &, std::vector< CoordType > &)
	synchronizes the smoother over all processes; is overridden in DistributedUmbrellaSmoother More...

Protected Attributes
std::vector< int >	_boundary_facets
	vector to store which facet is at the boundary More...

std::vector< int >	_boundary_vertices
	vector to store which vertex is at the boundary More...

std::vector< CoordType >	_edge_weights

MeshType_ &	_mesh
	the mesh we want to smooth More...

VertexSetType &	_vtx

Detailed Description

template<typename MeshType_>
class FEAT::Geometry::UmbrellaSmoother< MeshType_ >

Umbrella mesh smoother with both uniform and scale-dependent neighbor averaging For more information see

Template Parameters

MeshType_ The type of the mesh that is to be smoothed, e.g. ConformalMesh

Attention: This class should only be used in serial applications, i.e. on unpartitioned meshes! If you need to distort a partitioned mesh, use the derived DistributedUmbrellaSmoother class template instead!; Only use uniform = false if you know what you are doing

Author: Pia Ritter

Definition at line 46 of file umbrella_smoother.hpp.

Member Typedef Documentation

◆ CoordType

template<typename MeshType_ >

typedef MeshType_::CoordType FEAT::Geometry::UmbrellaSmoother< MeshType_ >::CoordType

Definition at line 49 of file umbrella_smoother.hpp.

◆ VertexSetType

template<typename MeshType_ >

typedef MeshType_::VertexSetType FEAT::Geometry::UmbrellaSmoother< MeshType_ >::VertexSetType

Definition at line 50 of file umbrella_smoother.hpp.

Constructor & Destructor Documentation

◆ UmbrellaSmoother()

template<typename MeshType_ >

FEAT::Geometry::UmbrellaSmoother< MeshType_ >::UmbrellaSmoother ( MeshType_ & mesh )

inlineexplicit

Constructor.

Parameters

[in] _mesh A reference to the mesh that is to be smoothed

Definition at line 74 of file umbrella_smoother.hpp.

◆ ~UmbrellaSmoother()

template<typename MeshType_ >

virtual FEAT::Geometry::UmbrellaSmoother< MeshType_ >::~UmbrellaSmoother ( )

inlinevirtual

Definition at line 84 of file umbrella_smoother.hpp.

Member Function Documentation

◆ _calc_boundary_facets()

template<typename MeshType_ >

virtual void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_facets ( )

inlineprotectedvirtual

determines for each facet whether it is a boundary facet or an inner facet

Reimplemented in FEAT::Geometry::DistributedUmbrellaSmoother< MeshType_ >.

Definition at line 208 of file umbrella_smoother.hpp.

References FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_facets, and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_mesh.

Referenced by FEAT::Geometry::DistributedUmbrellaSmoother< MeshType_ >::_calc_boundary_facets(), and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices().

◆ _calc_boundary_vertices()

template<typename MeshType_ >

virtual void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices ( )

inlineprotectedvirtual

determines for each vertex whether it is a boundary vertex or an inner vertex

Definition at line 237 of file umbrella_smoother.hpp.

References FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_facets, FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_vertices, FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_facets(), and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_mesh.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth().

◆ _calc_max()

template<typename MeshType_ >

virtual void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_max ( CoordType & )

inlineprotectedvirtual

calculates global maximum over all processes; is overridden in DistributedUmbrellaSmoother

Reimplemented in FEAT::Geometry::DistributedUmbrellaSmoother< MeshType_ >.

Definition at line 269 of file umbrella_smoother.hpp.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth().

◆ _synchronize()

template<typename MeshType_ >

virtual void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_synchronize	(	std::vector< Tiny::Vector< CoordType, world_dim > > &	,
		std::vector< CoordType > &
	)

inlineprotectedvirtual

synchronizes the smoother over all processes; is overridden in DistributedUmbrellaSmoother

Reimplemented in FEAT::Geometry::DistributedUmbrellaSmoother< MeshType_ >.

Definition at line 263 of file umbrella_smoother.hpp.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth().

◆ compile()

template<typename MeshType_ >

void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::compile ( )

inline

Definition at line 88 of file umbrella_smoother.hpp.

◆ smooth()

template<typename MeshType_ >

void FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth	(	Index	max_iter,
		CoordType	tol,
		bool	uniform = `true`
	)

inline

Smooths the mesh with an umbrella operator.

Iteratively moves each inner vertex towards the (possibly weighted) average of its adjacent vertices (Jacobi update). The weights are either uniform or inversely proportional to the edge lengths (w_ij = 1 / |e_ij|).

Parameters

[in]	uniform	true for uniform operator and false for scale dependent operator
[in]	max_iter	Maximum number of smoothing iterations
[in]	tol	Iteration stops if the largest vertex displacement between two steps falls below this threshold

Note: This function only moves inner vertices and leaves boundary vertices untouched.

Definition at line 115 of file umbrella_smoother.hpp.

References FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_vertices, FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices(), FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_max(), FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_mesh, FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_synchronize(), FEAT::Math::maxi(), and FEAT::Math::sqrt().

Member Data Documentation

◆ _boundary_facets

template<typename MeshType_ >

std::vector<int> FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_facets

protected

vector to store which facet is at the boundary

Definition at line 60 of file umbrella_smoother.hpp.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_facets(), and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices().

◆ _boundary_vertices

template<typename MeshType_ >

std::vector<int> FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_boundary_vertices

protected

vector to store which vertex is at the boundary

Definition at line 58 of file umbrella_smoother.hpp.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices(), and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth().

◆ _edge_weights

template<typename MeshType_ >

std::vector<CoordType> FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_edge_weights

protected

Definition at line 62 of file umbrella_smoother.hpp.

◆ _mesh

template<typename MeshType_ >

MeshType_& FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_mesh

protected

the mesh we want to smooth

Definition at line 56 of file umbrella_smoother.hpp.

Referenced by FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_facets(), FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_calc_boundary_vertices(), and FEAT::Geometry::UmbrellaSmoother< MeshType_ >::smooth().

◆ _vtx

template<typename MeshType_ >

VertexSetType& FEAT::Geometry::UmbrellaSmoother< MeshType_ >::_vtx

protected

Definition at line 64 of file umbrella_smoother.hpp.

◆ shape_dim

template<typename MeshType_ >

constexpr int FEAT::Geometry::UmbrellaSmoother< MeshType_ >::shape_dim = MeshType_::shape_dim

staticconstexpr

Definition at line 51 of file umbrella_smoother.hpp.

◆ world_dim

template<typename MeshType_ >

constexpr int FEAT::Geometry::UmbrellaSmoother< MeshType_ >::world_dim = MeshType_::world_dim

staticconstexpr

Definition at line 52 of file umbrella_smoother.hpp.

The documentation for this class was generated from the following file:

kernel/geometry/umbrella_smoother.hpp

Public Types

Public Member Functions

Static Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Member Typedef Documentation

◆ CoordType

◆ VertexSetType

Constructor & Destructor Documentation

◆ UmbrellaSmoother()

◆ ~UmbrellaSmoother()

Member Function Documentation

◆ _calc_boundary_facets()

◆ _calc_boundary_vertices()

◆ _calc_max()

◆ _synchronize()

◆ compile()

◆ smooth()

Member Data Documentation

◆ _boundary_facets

◆ _boundary_vertices

◆ _edge_weights

◆ _mesh

◆ _vtx

◆ shape_dim

◆ world_dim