Nektar++
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Nektar::Collections::BwdTrans_Helper Class Reference

Backward transform help class to calculate the size of the collection that is given as an input and as an output to the BwdTrans Operator. The size evaluation takes into account the conversion from the coefficient space to the physical space. More...

Inheritance diagram for Nektar::Collections::BwdTrans_Helper:
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Protected Member Functions

 BwdTrans_Helper ()
 

Additional Inherited Members

- Public Member Functions inherited from Nektar::Collections::Operator
 Operator (std::vector< StdRegions::StdExpansionSharedPtr > pCollExp, std::shared_ptr< CoalescedGeomData > GeomData, StdRegions::FactorMap factors)
 Constructor. More...
 
virtual ~Operator ()=default
 
virtual COLLECTIONS_EXPORT void operator() (const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output0, Array< OneD, NekDouble > &output1, Array< OneD, NekDouble > &output2, Array< OneD, NekDouble > &wsp=NullNekDouble1DArray)=0
 Perform operation. More...
 
virtual COLLECTIONS_EXPORT void operator() (int dir, const Array< OneD, const NekDouble > &input, Array< OneD, NekDouble > &output, Array< OneD, NekDouble > &wsp=NullNekDouble1DArray)=0
 
virtual COLLECTIONS_EXPORT void UpdateFactors (StdRegions::FactorMap factors)
 Update the supplied factor map. More...
 
virtual COLLECTIONS_EXPORT void UpdateVarcoeffs (StdRegions::VarCoeffMap &varcoeffs)
 Update the supplied variable coefficients. More...
 
unsigned int GetWspSize ()
 Get the size of the required workspace. More...
 
unsigned int GetNumElmt ()
 Get number of elements. More...
 
StdRegions::StdExpansionSharedPtr GetExpSharedPtr ()
 Get expansion pointer. More...
 
unsigned int GetInputSize (bool defaultIn=true)
 
unsigned int GetOutputSize (bool defaultOut=true)
 
- Protected Attributes inherited from Nektar::Collections::Operator
bool m_isDeformed
 
StdRegions::StdExpansionSharedPtr m_stdExp
 
unsigned int m_numElmt
 number of elements that the operator is applied on More...
 
unsigned int m_nqe
 
unsigned int m_wspSize
 
unsigned int m_inputSize
 number of modes or quadrature points that are passed as input to an operator More...
 
unsigned int m_outputSize
 number of modes or quadrature points that are taken as output from an operator More...
 
unsigned int m_inputSizeOther
 Number of modes or quadrature points, opposite to m_inputSize. More...
 
unsigned int m_outputSizeOther
 Number of modes or quadrature points, opposite to m_outputSize. More...
 

Detailed Description

Backward transform help class to calculate the size of the collection that is given as an input and as an output to the BwdTrans Operator. The size evaluation takes into account the conversion from the coefficient space to the physical space.

Definition at line 60 of file BwdTrans.cpp.

Constructor & Destructor Documentation

◆ BwdTrans_Helper()

Nektar::Collections::BwdTrans_Helper::BwdTrans_Helper ( )
inlineprotected

Definition at line 63 of file BwdTrans.cpp.

64 {
65 // expect input to be number of elements by the number of coefficients
66 m_inputSize = m_numElmt * m_stdExp->GetNcoeffs();
67 // expect input to be number of elements by the number of quad points
68 m_outputSize = m_numElmt * m_stdExp->GetTotPoints();
69 }
StdRegions::StdExpansionSharedPtr m_stdExp
Definition: Operator.h:217
unsigned int m_numElmt
number of elements that the operator is applied on
Definition: Operator.h:219
unsigned int m_outputSize
number of modes or quadrature points that are taken as output from an operator
Definition: Operator.h:227
unsigned int m_inputSize
number of modes or quadrature points that are passed as input to an operator
Definition: Operator.h:224

References Nektar::Collections::Operator::m_inputSize, Nektar::Collections::Operator::m_numElmt, Nektar::Collections::Operator::m_outputSize, and Nektar::Collections::Operator::m_stdExp.