gsVisitorNeumann< T > Class Template Reference

Detailed Description

template<class T>
class gismo::gsVisitorNeumann< T >

Implementation of a Neumann BC for elliptic assemblers.

The visior realizes the Neumann BC

\[ \nabla u \cdot \mathbf{n} = g_N \]

by adding the following term to the linear form:

\[ ( g_N, v )_{\Gamma_N}, \]

where \( \Gamma_N \) is the Neumann boundary.

Collaboration diagram for gsVisitorNeumann< T >:

Public Member Functions
void	assemble (gsDomainIterator< T > &, const gsVector< T > &quWeights)
	Assemble on element.
void	evaluate (const gsBasis< T > &basis, const gsGeometry< T > &geo, const gsMatrix< T > &quNodes)
	Evaluate on element.
	gsVisitorNeumann (const gsPde< T > &pde, const boundary_condition< T > &bc)
	Constructor. More...
	gsVisitorNeumann (const gsFunction< T > &neudata, boxSide s)
	Constructor. More...
void	initialize (const gsBasis< T > &basis, gsQuadRule< T > &rule)
	Initialize.
void	initialize (const gsBasis< T > &basis, const index_t, const gsOptionList &options, gsQuadRule< T > &rule)
	Initialize.
void	localToGlobal (const index_t patchIndex, const std::vector< gsMatrix< T > > &, gsSparseSystem< T > &system)
	Adds the contributions to the sparse system.
void	localToGlobal (const gsDofMapper &mapper, const gsMatrix< T > &eliminatedDofs, const index_t patchIndex, gsSparseMatrix< T > &sysMatrix, gsMatrix< T > &rhsMatrix)
	Adds the contributions to the sparse system.

Constructor & Destructor Documentation

gsVisitorNeumann ( const gsPde< T > &  pde, const boundary_condition< T > &  bc  )

inline

Constructor.

Parameters

pde	Reference to gsPde object (is ignored)
bc	The boundary condition to be realized

gsVisitorNeumann ( const gsFunction< T > &  neudata, boxSide  s  )

inline

Constructor.

Parameters

neudata	Neumann boundary function
s	Side of the geometry where Neumann BC is prescribed