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

#include <ProcessMapping.h>

Inheritance diagram for Nektar::Utilities::ProcessMapping:

Collaboration diagram for Nektar::Utilities::ProcessMapping:

Public Member Functions
	ProcessMapping (FieldSharedPtr f)

virtual	~ProcessMapping ()

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 GlobalMapping::MappingSharedPtr	GetMapping (FieldSharedPtr f)

Static Public Attributes
static ModuleKey	className

Private Attributes
FieldSharedPtr	m_fromField

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 51 of file ProcessMapping.h.

Constructor & Destructor Documentation

Nektar::Utilities::ProcessMapping::ProcessMapping ( FieldSharedPtr f )

Definition at line 54 of file ProcessMapping.cpp.

                                                : ProcessModule(f)
 {
 }

Nektar::Utilities::ProcessMapping::~ProcessMapping ( )

virtual

Definition at line 58 of file ProcessMapping.cpp.

59 {

60 }

Member Function Documentation

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

inlinestatic

Creates an instance of this class.

Definition at line 55 of file ProcessMapping.h.

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

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

GlobalMapping::MappingSharedPtr Nektar::Utilities::ProcessMapping::GetMapping ( FieldSharedPtr f )

static

Definition at line 173 of file ProcessMapping.cpp.

References ASSERTL0, Nektar::StdRegions::find(), Nektar::GlobalMapping::Mapping::Load(), Nektar::GlobalMapping::MappingSharedPtr, and Vmath::Vcopy().

Referenced by Nektar::Utilities::ProcessVorticity::Process(), Nektar::Utilities::ProcessGrad::Process(), and Process().

 {
     // Create mapping object
     Array<OneD, MultiRegions::ExpListSharedPtr>  field(1);
     field[0] = f->m_exp[0];
     GlobalMapping::MappingSharedPtr mapping = 
                             GlobalMapping::Mapping::Load(f->m_session,
                             field);
     
     // Get time from metadata
     NekDouble time;
     if (f->m_fieldMetaDataMap.count("Time"))
     {
         string s_time = f->m_fieldMetaDataMap["Time"];
         time = atof(s_time.c_str());
     }
     else
     {
         time = 0.0;
     }
     
     // Get field information
     int npoints = f->m_exp[0]->GetNpoints();
     int expdim    = f->m_graph->GetMeshDimension();
     int spacedim  = expdim;
     if ((f->m_fielddef[0]->m_numHomogeneousDir) == 1 ||
         (f->m_fielddef[0]->m_numHomogeneousDir) == 2)
     {
         spacedim = 3;
     }
     
     // Declare coordinates storage
     Array<OneD, Array<OneD, NekDouble> > coords_new(3);
     Array<OneD, Array<OneD, NekDouble> > coords_vel(3);
     for (int i = 0; i < 3; i++)
     {
         coords_new[i]  = Array<OneD, NekDouble> (npoints);
         coords_vel[i]  = Array<OneD, NekDouble> (npoints,0.0);
     }
     
     string fieldNames[3] = {"x", "y", "z"};
     string velFieldNames[3] = {"vx", "vy", "vz"};
     
     // Evaluate coordinates and coordinates velocity
     if (f->m_fieldMetaDataMap.count("MappingType"))
     {
         if (f->m_fieldMetaDataMap["MappingType"] == "Expression")
         {            
             // Get name of the functions
             string funcName;
             string velFuncName;
             if (f->m_fieldMetaDataMap.count("MappingExpression"))
             {
                 funcName = f->m_fieldMetaDataMap["MappingExpression"];
             }
             else
             {
                 funcName = "";
             }
             if (f->m_fieldMetaDataMap.count("MappingVelExpression"))
             {
                 velFuncName = f->m_fieldMetaDataMap["MappingVelExpression"];
             }
             else
             {
                 velFuncName = "";
             }
 
             // Get original coordinates (in case some of them are not changed)
             Array<OneD, Array<OneD, NekDouble> > coords(3);
             for (int i = 0; i < 3; i++)
             {
                 coords[i]      = Array<OneD, NekDouble> (npoints);
             }       
             f->m_exp[0]->GetCoords(coords[0], coords[1], coords[2]);
 
             // Load coordinates
             std::string s_FieldStr; 
             for(int i = 0; i < 3; i++)
             {
                 s_FieldStr = fieldNames[i];
                 if ( f->m_session->DefinesFunction(funcName, s_FieldStr))
                 {
                     LibUtilities::EquationSharedPtr ffunc =
                             f->m_session->GetFunction(funcName, s_FieldStr);
                     ffunc->Evaluate(coords[0], coords[1], coords[2], 
                                                 time, coords_new[i]);
                 }
                 else
                 {
                     // This coordinate is not defined, so use (x^i)' = x^i
                     Vmath::Vcopy(npoints, coords[i], 1, coords_new[i], 1);
                 }
             }  
             // Load velocities
             if (f->m_session->DefinesFunction(velFuncName))
             {
                 for (int i = 0; i < 3; i++)
                 {
                     s_FieldStr = velFieldNames[i];
                     if ( f->m_session->DefinesFunction(velFuncName, s_FieldStr))
                     {
                         LibUtilities::EquationSharedPtr ffunc =
                             f->m_session->GetFunction(velFuncName, s_FieldStr);
                         ffunc->Evaluate(coords[0], coords[1], coords[2], 
                                                 time, coords_vel[i]);
                     }
                 }
             }
 
             // Update mapping with coordinates
             mapping->SetFromFunction(false);
             mapping->UpdateMapping(time, coords_new,coords_vel);
         }
         else if(f->m_fieldMetaDataMap["MappingType"] == "File")
         {
             ASSERTL0(f->m_fieldMetaDataMap.count("FileName"),
                     "FileName parameter for Mapping missing in field file.");
             string fileName = f->m_fieldMetaDataMap["FileName"];
             std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef;    
             std::vector<std::vector<NekDouble> > FieldData;
 
             f->m_fld->Import(fileName,
                                 FieldDef,
                                 FieldData);
 
             for (int j = 0; j < spacedim; ++j)
             {
                 int ncoeffs = f->m_exp[0]->GetNcoeffs();
                 Array<OneD, NekDouble> fieldcoeffs(ncoeffs,0.0);
                 for (int i = 0; i < FieldData.size(); ++i)
                 {
                     f->m_exp[j]->ExtractDataToCoeffs(FieldDef[i],
                                                         FieldData[i],
                                                         fieldNames[j],
                                                                fieldcoeffs);
                 }
                 bool wavespace = f->m_exp[0]->GetWaveSpace();
                 f->m_exp[0]->SetWaveSpace(false);
 
                 f->m_exp[0]->BwdTrans(fieldcoeffs,
                                         coords_new[j]);
 
 
 
                 // Load coordinate velocity
                 if ( std::find(FieldDef[0]->m_fields.begin(), FieldDef[0]->m_fields.end(),
                                     velFieldNames[j])!=FieldDef[0]->m_fields.end())
                 {
                     for (int i = 0; i < FieldData.size(); ++i)
                     {
                         f->m_exp[j]->ExtractDataToCoeffs(FieldDef[i],
                                                             FieldData[i],
                                                             velFieldNames[j],
                                                                    fieldcoeffs);
                     }
                     f->m_exp[0]->BwdTrans(fieldcoeffs,
                                             coords_vel[j]);               
                 }
                 f->m_exp[0]->SetWaveSpace(wavespace);
             } 
             // Update mapping with coordinates
             mapping->SetFromFunction(false);
             mapping->UpdateMapping(time, coords_new,coords_vel);
         }
     }
     else
     {
         // Use trivial mapping
         Array<OneD, Array<OneD, NekDouble> > coords(3);
         Array<OneD, Array<OneD, NekDouble> > coords_vel(3);
         for (int i = 0; i < 3; i++)
         {
             coords[i]      = Array<OneD, NekDouble> (npoints);
             coords_vel[i]      = Array<OneD, NekDouble> (npoints, 0.0);
         }       
         f->m_exp[0]->GetCoords(coords[0], coords[1], coords[2]);
         mapping->SetFromFunction(false);
         mapping->UpdateMapping(time, coords,coords_vel);
     }
 
     return mapping;
     
 }

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

inlinevirtual

Implements Nektar::Utilities::Module.

Definition at line 67 of file ProcessMapping.h.

     {
         return "ProcessMapping";
     }

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

virtual

Write mesh to output file.

Implements Nektar::Utilities::Module.

Definition at line 62 of file ProcessMapping.cpp.

References GetMapping(), Nektar::Utilities::Module::m_f, Nektar::GlobalMapping::MappingSharedPtr, and Vmath::Vcopy().

 {
     if(m_f->m_verbose)
     {
         if(m_f->m_comm->GetRank() == 0)
         {
             cout << "ProcessMapping: Applying mapping to field..." << endl;
         }
     }
 
     // Determine dimensions of mesh, solution, etc...
     int npoints = m_f->m_exp[0]->GetNpoints();
     int expdim    = m_f->m_graph->GetMeshDimension();
     int spacedim  = expdim;
     if ((m_f->m_fielddef[0]->m_numHomogeneousDir) == 1 ||
         (m_f->m_fielddef[0]->m_numHomogeneousDir) == 2)
     {
         spacedim = 3;
     }
     int nfields = m_f->m_fielddef[0]->m_fields.size();
     int addfields = expdim;
     m_f->m_exp.resize(nfields+addfields);
     
     // Load mapping
     GlobalMapping::MappingSharedPtr mapping = GetMapping(m_f);
         
     // Convert velocity to Cartesian system
     if (m_f->m_fieldMetaDataMap.count("MappingCartesianVel"))
     {
         if (m_f->m_fieldMetaDataMap["MappingCartesianVel"] == "False")
         {
             m_f->m_fieldMetaDataMap["MappingCartesianVel"] = "True";
 
             Array<OneD, Array<OneD, NekDouble> > vel (spacedim);
             // Initialize arrays and copy velocity
             for ( int i =0; i<spacedim; ++i )
             {
                 vel[i] = Array<OneD, NekDouble> (npoints);      
                 if (m_f->m_exp[0]->GetWaveSpace())
                 {
                     m_f->m_exp[0]->HomogeneousBwdTrans(m_f->m_exp[i]->GetPhys(),
                                         vel[i]);
                 }
                 else
                 {
                     Vmath::Vcopy(npoints, m_f->m_exp[i]->GetPhys(), 1, 
                                         vel[i], 1);
                 }
 
             }
             // Convert velocity to cartesian system
             mapping->ContravarToCartesian(vel, vel);            
             // Copy result back
             for ( int i =0; i<spacedim; ++i )
             {
                 if (m_f->m_exp[0]->GetWaveSpace())
                 {
                     m_f->m_exp[0]->HomogeneousFwdTrans(vel[i], 
                                         m_f->m_exp[i]->UpdatePhys());
                 }
                 else
                 {
                     Vmath::Vcopy(npoints, vel[i], 1, 
                                         m_f->m_exp[i]->UpdatePhys(), 1);
                 }
                 m_f->m_exp[i]->FwdTrans_IterPerExp(m_f->m_exp[i]->GetPhys(),
                                         m_f->m_exp[i]->UpdateCoeffs());
             }        
         }
     }
     
     // Get coordinates from mapping
     Array<OneD, Array<OneD, NekDouble> > coords(3);
     mapping->GetCartesianCoordinates(coords[0], coords[1], coords[2]);
     
     // Add new information to m_f
     string fieldNames[3] = {"xCoord", "yCoord", "zCoord"};
     vector<string > outname;
     for (int i = 0; i < addfields; ++i)
     {
         m_f->m_exp[nfields + i] = m_f->AppendExpList(m_f->m_fielddef[0]->m_numHomogeneousDir);
         m_f->m_exp[nfields + i]->UpdatePhys() = coords[i];
         m_f->m_exp[nfields + i]->FwdTrans_IterPerExp(coords[i],
                             m_f->m_exp[nfields + i]->UpdateCoeffs());
         outname.push_back(fieldNames[i]);
     }
 
     std::vector<LibUtilities::FieldDefinitionsSharedPtr> FieldDef
         = m_f->m_exp[0]->GetFieldDefinitions();
     std::vector<std::vector<NekDouble> > FieldData(FieldDef.size());
 
     for (int j = 0; j < nfields + addfields; ++j)
     {
         for (int i = 0; i < FieldDef.size(); ++i)
         {   
             if (j >= nfields)
             {
                 FieldDef[i]->m_fields.push_back(outname[j-nfields]);
             }
             else
             {
                 FieldDef[i]->m_fields.push_back(m_f->m_fielddef[0]->m_fields[j]);
             }
             m_f->m_exp[j]->AppendFieldData(FieldDef[i], FieldData[i]);
         }
     }
 
     m_f->m_fielddef = FieldDef;
     m_f->m_data     = FieldData;
 }

Member Data Documentation

ModuleKey Nektar::Utilities::ProcessMapping::className

static

Initial value:

=
    GetModuleFactory().RegisterCreatorFunction(
        ModuleKey(eProcessModule, "mapping"),
        ProcessMapping::create, "Add mapping coordinates to output file.")

Definition at line 59 of file ProcessMapping.h.

FieldSharedPtr Nektar::Utilities::ProcessMapping::m_fromField

private

Definition at line 75 of file ProcessMapping.h.

Public Member Functions

Static Public Member Functions

Static Public Attributes

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation