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MFEM
v4.5.2
Finite element discretization library
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Scalar coefficient defined as the linear combination of two scalar coefficients or a scalar and a scalar coefficient. More...
#include <coefficient.hpp>
Public Member Functions | |
SumCoefficient (double A, Coefficient &B, double alpha_=1.0, double beta_=1.0) | |
Constructor with one coefficient. Result is alpha_ * A + beta_ * B. More... | |
SumCoefficient (Coefficient &A, Coefficient &B, double alpha_=1.0, double beta_=1.0) | |
Constructor with two coefficients. Result is alpha_ * A + beta_ * B. More... | |
void | SetTime (double t) |
Set the time for internally stored coefficients. More... | |
void | SetAConst (double A) |
Reset the first term in the linear combination as a constant. More... | |
double | GetAConst () const |
Return the first term in the linear combination. More... | |
void | SetACoef (Coefficient &A) |
Reset the first term in the linear combination. More... | |
Coefficient * | GetACoef () const |
Return the first term in the linear combination. More... | |
void | SetBCoef (Coefficient &B) |
Reset the second term in the linear combination. More... | |
Coefficient * | GetBCoef () const |
Return the second term in the linear combination. More... | |
void | SetAlpha (double alpha_) |
Reset the factor in front of the first term in the linear combination. More... | |
double | GetAlpha () const |
Return the factor in front of the first term in the linear combination. More... | |
void | SetBeta (double beta_) |
Reset the factor in front of the second term in the linear combination. More... | |
double | GetBeta () const |
Return the factor in front of the second term in the linear combination. More... | |
virtual double | Eval (ElementTransformation &T, const IntegrationPoint &ip) |
Evaluate the coefficient at ip. More... | |
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Coefficient () | |
double | GetTime () |
Get the time for time dependent coefficients. More... | |
double | Eval (ElementTransformation &T, const IntegrationPoint &ip, double t) |
Evaluate the coefficient in the element described by T at the point ip at time t. More... | |
virtual void | Project (QuadratureFunction &qf) |
Fill the QuadratureFunction qf by evaluating the coefficient at the quadrature points. More... | |
virtual | ~Coefficient () |
Additional Inherited Members | |
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double | time |
Scalar coefficient defined as the linear combination of two scalar coefficients or a scalar and a scalar coefficient.
Coefficients based on sums, products, or other functions of coefficients.
Definition at line 1232 of file coefficient.hpp.
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Constructor with one coefficient. Result is alpha_ * A + beta_ * B.
Definition at line 1244 of file coefficient.hpp.
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Constructor with two coefficients. Result is alpha_ * A + beta_ * B.
Definition at line 1249 of file coefficient.hpp.
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Evaluate the coefficient at ip.
Implements mfem::Coefficient.
Definition at line 1282 of file coefficient.hpp.
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Return the first term in the linear combination.
Definition at line 1264 of file coefficient.hpp.
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Return the first term in the linear combination.
Definition at line 1259 of file coefficient.hpp.
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Return the factor in front of the first term in the linear combination.
Definition at line 1274 of file coefficient.hpp.
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Return the second term in the linear combination.
Definition at line 1269 of file coefficient.hpp.
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Return the factor in front of the second term in the linear combination.
Definition at line 1279 of file coefficient.hpp.
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Reset the first term in the linear combination.
Definition at line 1262 of file coefficient.hpp.
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Reset the first term in the linear combination as a constant.
Definition at line 1257 of file coefficient.hpp.
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Reset the factor in front of the first term in the linear combination.
Definition at line 1272 of file coefficient.hpp.
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Reset the second term in the linear combination.
Definition at line 1267 of file coefficient.hpp.
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Reset the factor in front of the second term in the linear combination.
Definition at line 1277 of file coefficient.hpp.
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Set the time for internally stored coefficients.
Reimplemented from mfem::Coefficient.
Definition at line 898 of file coefficient.cpp.