Nektar::Utilities::ProcessQualityMetric Class Reference

This processing module scales the input fld file. More...

#include <ProcessQualityMetric.h>

Inheritance diagram for Nektar::Utilities::ProcessQualityMetric:

Collaboration diagram for Nektar::Utilities::ProcessQualityMetric:

Public Member Functions
	ProcessQualityMetric (FieldSharedPtr f)
virtual	~ProcessQualityMetric ()
virtual void	Process (po::variables_map &vm)
	Write mesh to output file. More...
virtual std::string	GetModuleName ()
Public Member Functions inherited from Nektar::Utilities::ProcessModule
	ProcessModule ()
	ProcessModule (FieldSharedPtr p_f)
	ProcessModule (MeshSharedPtr p_m)
Public Member Functions inherited from Nektar::Utilities::Module
	Module (FieldSharedPtr p_f)
void	RegisterConfig (string key, string value)
	Register a configuration option with a module. More...
void	PrintConfig ()
	Print out all configuration options for a module. More...
void	SetDefaults ()
	Sets default configuration options for those which have not been set. More...
bool	GetRequireEquiSpaced (void)
void	SetRequireEquiSpaced (bool pVal)
void	EvaluateTriFieldAtEquiSpacedPts (LocalRegions::ExpansionSharedPtr &exp, const Array< OneD, const NekDouble > &infield, Array< OneD, NekDouble > &outfield)
	Module (MeshSharedPtr p_m)
virtual void	Process ()=0
void	RegisterConfig (std::string key, std::string value)
void	PrintConfig ()
void	SetDefaults ()
MeshSharedPtr	GetMesh ()
virtual void	ProcessVertices ()
	Extract element vertices. More...
virtual void	ProcessEdges (bool ReprocessEdges=true)
	Extract element edges. More...
virtual void	ProcessFaces (bool ReprocessFaces=true)
	Extract element faces. More...
virtual void	ProcessElements ()
	Generate element IDs. More...
virtual void	ProcessComposites ()
	Generate composites. More...
virtual void	ClearElementLinks ()

Static Public Member Functions
static boost::shared_ptr< Module >	create (FieldSharedPtr f)
	Creates an instance of this class. More...

Static Public Attributes
static ModuleKey	className

Private Member Functions
Array< OneD, NekDouble >	GetQ (LocalRegions::ExpansionSharedPtr e)

Additional Inherited Members
Protected Member Functions inherited from Nektar::Utilities::Module
	Module ()
void	ReorderPrisms (PerMap &perFaces)
	Reorder node IDs so that prisms and tetrahedra are aligned correctly. More...
void	PrismLines (int prism, PerMap &perFaces, std::set< int > &prismsDone, std::vector< ElementSharedPtr > &line)
Protected Attributes inherited from Nektar::Utilities::Module
FieldSharedPtr	m_f
	Field object. More...
map< string, ConfigOption >	m_config
	List of configuration values. More...
bool	m_requireEquiSpaced
MeshSharedPtr	m_mesh
	Mesh object. More...
std::map< std::string, ConfigOption >	m_config
	List of configuration values. More...

Detailed Description

This processing module scales the input fld file.

Definition at line 47 of file ProcessQualityMetric.h.

Constructor & Destructor Documentation

Nektar::Utilities::ProcessQualityMetric::ProcessQualityMetric

(

FieldSharedPtr

f

)

Definition at line 61 of file ProcessQualityMetric.cpp.

                                                           :
    ProcessModule(f)
{

}

Nektar::Utilities::ProcessQualityMetric::~ProcessQualityMetric ( )

virtual

Definition at line 67 of file ProcessQualityMetric.cpp.

{
}

Member Function Documentation

static boost::shared_ptr<Module> Nektar::Utilities::ProcessQualityMetric::create ( FieldSharedPtr  f )

inlinestatic

Creates an instance of this class.

Definition at line 51 of file ProcessQualityMetric.h.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr().

        {
            return MemoryManager<ProcessQualityMetric>::AllocateSharedPtr(f);
        }

virtual std::string Nektar::Utilities::ProcessQualityMetric::GetModuleName ( )

inlinevirtual

Implements Nektar::Utilities::Module.

Definition at line 63 of file ProcessQualityMetric.h.

        {
            return "ProcessQualityMetric";
        }

Array< OneD, NekDouble > Nektar::Utilities::ProcessQualityMetric::GetQ ( LocalRegions::ExpansionSharedPtr  e )

private

Definition at line 291 of file ProcessQualityMetric.cpp.

References Nektar::MemoryManager< DataType >::AllocateSharedPtr(), ASSERTL0, Nektar::eFULL, Nektar::LibUtilities::ePrism, Nektar::LibUtilities::eQuadrilateral, Nektar::LibUtilities::eTetrahedron, Nektar::LibUtilities::eTriangle, ErrorUtil::ewarning, Vmath::Fill(), Nektar::LibUtilities::Interp2D(), Nektar::LibUtilities::Interp3D(), Nektar::Utilities::MappingIdealToRef(), and NEKERROR.

Referenced by Process().

{
    SpatialDomains::GeometrySharedPtr    geom = e->GetGeom();
    StdRegions::StdExpansionSharedPtr    chi  = e->GetGeom()->GetXmap();
    LibUtilities::PointsKeyVector        p    = chi->GetPointsKeys();
    LibUtilities::PointsKeyVector        pElem= e->GetPointsKeys();
    SpatialDomains::GeomFactorsSharedPtr gfac = geom->GetGeomFactors();
    const int expDim = chi->GetNumBases();
    int nElemPts = 1;

    vector<LibUtilities::BasisKey> basisKeys;
    bool needsInterp = false;

    for (int i = 0; i < expDim; ++i)
    {
        nElemPts *= pElem[i].GetNumPoints();
        needsInterp =
            needsInterp || pElem[i].GetNumPoints() < p[i].GetNumPoints() -1;
    }

    if (needsInterp)
    {
        stringstream err;
        err << "Interpolating from higher order geometry to lower order in "
            << "element " << geom->GetGlobalID();
        NEKERROR(ErrorUtil::ewarning, err.str());
    }

    for (int i = 0; i < expDim; ++i)
    {
        basisKeys.push_back(
            needsInterp ? chi->GetBasis(i)->GetBasisKey() :
            LibUtilities::BasisKey(chi->GetBasisType(i),
                                   chi->GetBasisNumModes(i),
                                   pElem[i]));
    }

    StdRegions::StdExpansionSharedPtr chiMod;
    switch(chi->DetShapeType())
    {
        case LibUtilities::eTriangle:
            chiMod = MemoryManager<StdRegions::StdTriExp>::AllocateSharedPtr(
                basisKeys[0], basisKeys[1]);
            break;
        case LibUtilities::eQuadrilateral:
            chiMod = MemoryManager<StdRegions::StdQuadExp>::AllocateSharedPtr(
                basisKeys[0], basisKeys[1]);
            break;
        case LibUtilities::eTetrahedron:
            chiMod = MemoryManager<StdRegions::StdTetExp>::AllocateSharedPtr(
                basisKeys[0], basisKeys[1], basisKeys[2]);
            break;
        case LibUtilities::ePrism:
            chiMod = MemoryManager<StdRegions::StdPrismExp>::AllocateSharedPtr(
                basisKeys[0], basisKeys[1], basisKeys[2]);
            break;
        default:
            ASSERTL0(false, "nope");
    }

    SpatialDomains::DerivStorage deriv = gfac->GetDeriv(pElem);

    const int pts = deriv[0][0].num_elements();
    const int nq  = chiMod->GetTotPoints();

    ASSERTL0(pts == nq, "what");

    vector<DNekMat> i2rm = MappingIdealToRef(geom, chiMod);
    Array<OneD, NekDouble> eta(nq);

    for (int k = 0; k < pts; ++k)
    {
        DNekMat jac     (expDim, expDim, 0.0, eFULL);
        DNekMat jacIdeal(expDim, expDim, 0.0, eFULL);

        for (int i = 0; i < expDim; ++i)
        {
            for (int j = 0; j < expDim; ++j)
            {
                jac(j,i) = deriv[i][j][k];
            }
        }

        jacIdeal = jac * i2rm[k];
        NekDouble jacDet;

        if(expDim == 2)
        {
            jacDet = jacIdeal(0,0) * jacIdeal(1,1) - jacIdeal(0,1)*jacIdeal(1,0);
        }
        else if(expDim == 3)
        {
            jacDet = jacIdeal(0,0) * (jacIdeal(1,1)*jacIdeal(2,2) - jacIdeal(2,1)*jacIdeal(1,2)) -
                     jacIdeal(0,1) * (jacIdeal(1,0)*jacIdeal(2,2) - jacIdeal(2,0)*jacIdeal(1,2)) +
                     jacIdeal(0,2) * (jacIdeal(1,0)*jacIdeal(2,1) - jacIdeal(2,0)*jacIdeal(1,1));
        }
        else
        {
            ASSERTL0(false,"silly exp dim");
        }

        NekDouble frob = 0.0;

        for (int i = 0; i < expDim; ++i)
        {
            for (int j = 0; j < expDim; ++j)
            {
                frob += jacIdeal(i,j) * jacIdeal(i,j);
            }
        }

        NekDouble sigma = 0.5*(jacDet + sqrt(jacDet*jacDet));
        eta[k] = expDim * pow(sigma, 2.0/expDim) / frob;
    }

    // Project onto output stuff
    if (needsInterp && pts != 1)
    {
        Array<OneD, NekDouble> tmp(nElemPts);

        if (expDim == 2)
        {
            LibUtilities::Interp2D(p[0], p[1], eta, pElem[0], pElem[1], tmp);
        }
        else if(expDim == 3)
        {
            LibUtilities::Interp3D(p[0], p[1], p[2], eta, pElem[0], pElem[1],
                                   pElem[2], tmp);
        }
        else
        {
            ASSERTL0(false,"mesh dim makes no sense");
        }

        eta = tmp;
    }

    if (pts == 1)
    {
        Vmath::Fill(nq-1, eta[0], &eta[1], 1);
    }

    return eta;
}

void Nektar::Utilities::ProcessQualityMetric::Process ( po::variables_map &  vm )

virtual

Write mesh to output file.

Implements Nektar::Utilities::Module.

Definition at line 71 of file ProcessQualityMetric.cpp.

References ASSERTL0, GetQ(), Nektar::Utilities::Module::m_f, and Vmath::Vcopy().

{
    if (m_f->m_verbose)
    {
        if(m_f->m_comm->TreatAsRankZero())
        {
            cout << "ProcessQualityMetric: Adding quality metric to field"
                 << endl;
        }
    }

    Array<OneD, NekDouble> &phys   = m_f->m_exp[0]->UpdatePhys();
    Array<OneD, NekDouble> &coeffs = m_f->m_exp[0]->UpdateCoeffs();

    for(int i =0; i < m_f->m_exp[0]->GetExpSize(); ++i)
    {
        // copy Jacobian into field
        LocalRegions::ExpansionSharedPtr Elmt = m_f->m_exp[0]->GetExp(i);
        int offset = m_f->m_exp[0]->GetPhys_Offset(i);
        Array<OneD, NekDouble> q = GetQ(Elmt);
        Array<OneD, NekDouble> out = phys + offset;

        ASSERTL0(q.num_elements() == Elmt->GetTotPoints(), "number of points mismatch");
        Vmath::Vcopy(q.num_elements(), q, 1, out, 1);
    }

    m_f->m_exp[0]->FwdTrans_IterPerExp(phys, coeffs);

    std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
        = m_f->m_exp[0]->GetFieldDefinitions();
    std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());

    for (int i = 0; i < FieldDef.size(); ++i)
    {
        FieldDef[i]->m_fields.push_back("QualityMetric");
        m_f->m_exp[0]->AppendFieldData(FieldDef[i], FieldData[i]);
    }

    m_f->m_fielddef = FieldDef;
    m_f->m_data     = FieldData;
}

Member Data Documentation

ModuleKey Nektar::Utilities::ProcessQualityMetric::className

static

Initial value:

=
        GetModuleFactory().RegisterCreatorFunction(
                ModuleKey(eProcessModule, "qualitymetric"),
                ProcessQualityMetric::create,
                "add quality metric to field.")

Definition at line 55 of file ProcessQualityMetric.h.