Base class for Matrix Coefficients that optionally depend on time and space.
More...
#include <coefficient.hpp>
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| | MatrixCoefficient (int dim, bool symm=false) |
| | Construct a dim x dim matrix coefficient. More...
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| | MatrixCoefficient (int h, int w, bool symm=false) |
| | Construct a h x w matrix coefficient. More...
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| void | SetTime (double t) |
| | Set the time for time dependent coefficients. More...
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| double | GetTime () |
| | Get the time for time dependent coefficients. More...
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| int | GetHeight () const |
| | Get the height of the matrix. More...
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| int | GetWidth () const |
| | Get the width of the matrix. More...
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| int | GetVDim () const |
| | For backward compatibility get the width of the matrix. More...
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| bool | IsSymmetric () const |
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| virtual void | Eval (DenseMatrix &K, ElementTransformation &T, const IntegrationPoint &ip)=0 |
| | Evaluate the matrix coefficient in the element described by T at the point ip, storing the result in K. More...
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| virtual void | EvalSymmetric (Vector &K, ElementTransformation &T, const IntegrationPoint &ip) |
| | Evaluate the upper triangular entries of the matrix coefficient in the symmetric case, similarly to Eval. Matrix entry (i,j) is stored in K[j - i + os_i] for 0 <= i <= j < width, os_0 = 0, os_{i+1} = os_i + width - i. That is, K = {M(0,0), ..., M(0,w-1), M(1,1), ..., M(1,w-1), ..., M(w-1,w-1) with w = width. More...
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| virtual | ~MatrixCoefficient () |
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Base class for Matrix Coefficients that optionally depend on time and space.
Definition at line 693 of file coefficient.hpp.
| mfem::MatrixCoefficient::MatrixCoefficient |
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int |
dim, |
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bool |
symm = false |
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inlineexplicit |
| mfem::MatrixCoefficient::MatrixCoefficient |
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int |
h, |
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int |
w, |
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bool |
symm = false |
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inline |
| virtual mfem::MatrixCoefficient::~MatrixCoefficient |
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inlinevirtual |
Evaluate the matrix coefficient in the element described by T at the point ip, storing the result in K.
- Note
- When this method is called, the caller must make sure that the IntegrationPoint associated with T is the same as ip. This can be achieved by calling T.SetIntPoint(&ip).
Implemented in mfem::CrossCrossCoefficient, mfem::OuterProductCoefficient, mfem::InverseMatrixCoefficient, mfem::TransposeMatrixCoefficient, mfem::ScalarMatrixProductCoefficient, mfem::MatrixSumCoefficient, mfem::IdentityMatrixCoefficient, mfem::MatrixRestrictedCoefficient, mfem::MatrixArrayCoefficient, mfem::MatrixFunctionCoefficient, mfem::MatrixConstantCoefficient, and HessianCoefficient.
Evaluate the upper triangular entries of the matrix coefficient in the symmetric case, similarly to Eval. Matrix entry (i,j) is stored in K[j - i + os_i] for 0 <= i <= j < width, os_0 = 0, os_{i+1} = os_i + width - i. That is, K = {M(0,0), ..., M(0,w-1), M(1,1), ..., M(1,w-1), ..., M(w-1,w-1) with w = width.
Reimplemented in mfem::MatrixFunctionCoefficient.
Definition at line 739 of file coefficient.hpp.
| int mfem::MatrixCoefficient::GetHeight |
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const |
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| double mfem::MatrixCoefficient::GetTime |
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Get the time for time dependent coefficients.
Definition at line 713 of file coefficient.hpp.
| int mfem::MatrixCoefficient::GetVDim |
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const |
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For backward compatibility get the width of the matrix.
Definition at line 722 of file coefficient.hpp.
| int mfem::MatrixCoefficient::GetWidth |
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const |
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| bool mfem::MatrixCoefficient::IsSymmetric |
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const |
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| void mfem::MatrixCoefficient::SetTime |
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double |
t | ) |
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Set the time for time dependent coefficients.
Definition at line 710 of file coefficient.hpp.
| int mfem::MatrixCoefficient::height |
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| bool mfem::MatrixCoefficient::symmetric |
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| double mfem::MatrixCoefficient::time |
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| int mfem::MatrixCoefficient::width |
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The documentation for this class was generated from the following file:
1.8.5
