mfem::Cut Class Reference

All subclasses of Cut will implement intersection routines and quadrature point generation within the cut in the intersection of two elements. Although, this class is designed to support MortarAssembler and ParMortarAssembler, it can be used for any problem requiring to perform Petrov-Galerkin formulations on non-matching elements. More...

#include <cut.hpp>

Inheritance diagram for mfem::Cut:

Public Member Functions
virtual	~Cut ()=default
virtual void	SetIntegrationOrder (const int order)=0
	This method creates/updates the quadrature on the reference element based on the integration order. More...
virtual bool	BuildQuadrature (const FiniteElementSpace &from_space, const int from_elem_idx, const FiniteElementSpace &to_space, const int to_elem_idx, IntegrationRule &from_quadrature, IntegrationRule &to_quadrature)=0
	This computes the intersection of the finite element geometries and generates quadratures formulas for the two reference configurations. More...
virtual void	Describe () const
	Method for printing information to the command line. More...

Protected Member Functions
virtual void	SetQuadratureRule (const IntegrationRule &ir)=0

Detailed Description

All subclasses of Cut will implement intersection routines and quadrature point generation within the cut in the intersection of two elements. Although, this class is designed to support MortarAssembler and ParMortarAssembler, it can be used for any problem requiring to perform Petrov-Galerkin formulations on non-matching elements.

Definition at line 28 of file cut.hpp.

Constructor & Destructor Documentation

virtual mfem::Cut::~Cut ( )

virtualdefault

Member Function Documentation

virtual bool mfem::Cut::BuildQuadrature ( const FiniteElementSpace &  from_space, const int  from_elem_idx, const FiniteElementSpace &  to_space, const int  to_elem_idx, IntegrationRule &  from_quadrature, IntegrationRule &  to_quadrature  )

pure virtual

This computes the intersection of the finite element geometries and generates quadratures formulas for the two reference configurations.

Parameters

	from_space	the space from which we want to transfer a function with MortarAssembler and ParMortarAssembler
	from_elem_idx	the index of the element of the from_space
	to_space	the space to which we want to transfer a function with MortarAssembler and ParMortarAssembler
	to_elem_idx	the index of the element of the to_space
[out]	from_quadrature	the quadrature rule in the reference coordinate system of the from element
[out]	to_quadrature	the quadrature rule in the reference coordinate system of the to element

Returns

true if the two element intersected and if the output must be used or ignored.

virtual void mfem::Cut::Describe ( ) const

inlinevirtual

Method for printing information to the command line.

Definition at line 66 of file cut.hpp.

virtual void mfem::Cut::SetIntegrationOrder ( const int  order )

pure virtual

This method creates/updates the quadrature on the reference element based on the integration order.

Parameters

order

the order of the quadrature rule

virtual void mfem::Cut::SetQuadratureRule ( const IntegrationRule &  ir )

protectedpure virtual

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

• fem/moonolith/cut.hpp