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MFEM
v4.2.0
Finite element discretization library
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Structure representing the matrices/tensors needed to evaluate (in reference space) the values, gradients, divergences, or curls of a FiniteElement at a the quadrature points of a given IntegrationRule. More...
#include <fe.hpp>
Public Types | |
enum | Mode { FULL, TENSOR } |
Type of data stored in the arrays B, Bt, G, and Gt. More... | |
Public Attributes | |
class FiniteElement * | FE |
The FiniteElement that created and owns this object. More... | |
const IntegrationRule * | IntRule |
IntegrationRule that defines the quadrature points at which the basis functions of the FE are evaluated. More... | |
Mode | mode |
Describes the contents of the B, Bt, G, and Gt arrays, see Mode. More... | |
int | ndof |
Number of degrees of freedom = number of basis functions. When mode is TENSOR, this is the 1D number. More... | |
int | nqpt |
Number of quadrature points. When mode is TENSOR, this is the 1D number. More... | |
Array< double > | B |
Basis functions evaluated at quadrature points. More... | |
Array< double > | Bt |
Transpose of B. More... | |
Array< double > | G |
Gradients/divergences/curls of basis functions evaluated at quadrature points. More... | |
Array< double > | Gt |
Transpose of G. More... | |
Structure representing the matrices/tensors needed to evaluate (in reference space) the values, gradients, divergences, or curls of a FiniteElement at a the quadrature points of a given IntegrationRule.
Object of this type are typically created and owned by the respective FiniteElement object.
Type of data stored in the arrays B, Bt, G, and Gt.
Enumerator | |
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FULL |
Full multidimensional representation which does not use tensor product structure. The ordering of the degrees of freedom is as defined by FE. |
TENSOR |
Tensor product representation using 1D matrices/tensors with dimensions using 1D number of quadrature points and degrees of freedom. When representing a vector-valued FiniteElement, two DofToQuad objects are used to describe the "closed" and "open" 1D basis functions (TODO). |
Array<double> mfem::DofToQuad::B |
Array<double> mfem::DofToQuad::Bt |
class FiniteElement* mfem::DofToQuad::FE |
The FiniteElement that created and owns this object.
This pointer is not owned.
Array<double> mfem::DofToQuad::G |
Gradients/divergences/curls of basis functions evaluated at quadrature points.
The storage layout is column-major with dimensions:
where
Array<double> mfem::DofToQuad::Gt |
const IntegrationRule* mfem::DofToQuad::IntRule |
IntegrationRule that defines the quadrature points at which the basis functions of the FE are evaluated.
This pointer is not owned.
Mode mfem::DofToQuad::mode |
int mfem::DofToQuad::ndof |
int mfem::DofToQuad::nqpt |