Nektar::Utilities::OutputVtk Class Reference

Converter from fld to vtk. More...

#include <OutputVtk.h>

Inheritance diagram for Nektar::Utilities::OutputVtk:

Collaboration diagram for Nektar::Utilities::OutputVtk:

Public Member Functions
	OutputVtk (FieldSharedPtr f)
virtual	~OutputVtk ()
virtual void	Process (po::variables_map &vm)
	Write fld to output file. More...
	OutputVtk (MeshSharedPtr m)
virtual	~OutputVtk ()
virtual void	Process ()
	Write mesh to output file. More...
Public Member Functions inherited from Nektar::Utilities::OutputModule
	OutputModule (FieldSharedPtr p_f)
void	OpenStream ()
	Open a file for output. More...
	OutputModule (MeshSharedPtr p_m)
void	OpenStream ()
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)
void	RegisterConfig (string key, string value)
void	PrintConfig ()
void	SetDefaults ()
MeshSharedPtr	GetMesh ()
virtual void	ProcessVertices ()
	Extract element vertices. More...

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

Static Public Attributes
static ModuleKey	m_className
static ModuleKey	className

Additional Inherited Members
Protected Member Functions inherited from Nektar::Utilities::Module
	Module ()
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...
void	ReorderPrisms (PerMap &perFaces)
	Reorder node IDs so that prisms and tetrahedra are aligned correctly. More...
void	PrismLines (int prism, PerMap &perFaces, set< int > &prismsDone, vector< ElementSharedPtr > &line)
Protected Attributes inherited from Nektar::Utilities::OutputModule
ofstream	m_fldFile
	Output stream. More...
std::ofstream	m_mshFile
	Output stream. More...
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...

Detailed Description

Converter from fld to vtk.

Converter for Gmsh files.

Definition at line 48 of file FieldConvert/OutputModules/OutputVtk.h.

Constructor & Destructor Documentation

Nektar::Utilities::OutputVtk::OutputVtk

(

FieldSharedPtr

f

)

Definition at line 52 of file FieldConvert/OutputModules/OutputVtk.cpp.

References Nektar::Utilities::Module::m_requireEquiSpaced.

                                     : OutputModule(f)
{
    m_requireEquiSpaced = true;
}

Nektar::Utilities::OutputVtk::~OutputVtk ( )

virtual

Definition at line 57 of file FieldConvert/OutputModules/OutputVtk.cpp.

{
}

Nektar::Utilities::OutputVtk::OutputVtk

(

MeshSharedPtr

m

)

Definition at line 57 of file MeshConvert/OutputModules/OutputVtk.cpp.

                                            : OutputModule(m)
        {
            
        }

virtual Nektar::Utilities::OutputVtk::~OutputVtk ( )

virtual

Member Function Documentation

static boost::shared_ptr<Module> Nektar::Utilities::OutputVtk::create ( MeshSharedPtr  m )

inlinestatic

Creates an instance of this class.

Definition at line 51 of file MeshConvert/OutputModules/OutputVtk.h.

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

                                                                   {
                return MemoryManager<OutputVtk>::AllocateSharedPtr(m);
            }

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

inlinestatic

Creates an instance of this class.

Definition at line 52 of file FieldConvert/OutputModules/OutputVtk.h.

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

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

void Nektar::Utilities::OutputVtk::Process ( )

virtual

Write mesh to output file.

Implements Nektar::Utilities::Module.

Definition at line 67 of file MeshConvert/OutputModules/OutputVtk.cpp.

References Nektar::iterator, Nektar::Utilities::Module::m_config, and Nektar::Utilities::Module::m_mesh.

        {
            if (m_mesh->m_verbose)
            {
                cout << "OutputVtk: Writing file..." << endl;
            }

            vtkPolyData *vtkMesh = vtkPolyData::New();
            vtkPoints *vtkPoints = vtkPoints::New();
            vtkCellArray *vtkPolys = vtkCellArray::New();

            std::set<NodeSharedPtr>::iterator it;

            std::set<NodeSharedPtr> tmp(
                    m_mesh->m_vertexSet.begin(),
                    m_mesh->m_vertexSet.end());

            for (it = tmp.begin(); it != tmp.end(); ++it)
            {
                NodeSharedPtr n = *it;
                vtkPoints->InsertPoint(n->m_id, n->m_x, n->m_y, n->m_z);
            }

            vtkIdType p[8];
            vector<ElementSharedPtr> &elmt = 
                                    m_mesh->m_element[m_mesh->m_expDim];
            for(int i = 0; i < elmt.size(); ++i)
            {
                int vertexCount = elmt[i]->GetVertexCount();
                for (int j = 0; j < vertexCount; ++j)
                {
                    p[j] = elmt[i]->GetVertex(j)->m_id;
                }
                vtkPolys->InsertNextCell(vertexCount, &p[0]);
            }

            vtkMesh->SetPoints(vtkPoints);
            vtkMesh->SetPolys(vtkPolys);

            // Write out the new mesh
            vtkPolyDataWriter *vtkMeshWriter = vtkPolyDataWriter::New();
            vtkMeshWriter->SetFileName(m_config["outfile"].as<string>().c_str());
#if VTK_MAJOR_VERSION <= 5
            vtkMeshWriter->SetInput(vtkMesh);
#else
            vtkMeshWriter->SetInputData(vtkMesh);
#endif
            vtkMeshWriter->Update();
        }        

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

virtual

Write fld to output file.

Implements Nektar::Utilities::Module.

Definition at line 61 of file FieldConvert/OutputModules/OutputVtk.cpp.

References Nektar::Utilities::Module::m_config, and Nektar::Utilities::Module::m_f.

{
    if(!m_f->m_exp.size()) // do nothing if no expansion defined
    {
        return;
    }

    int i, j;
    if (m_f->m_verbose)
    {
        cout << "OutputVtk: Writing file..." << endl;
    }

    // Extract the output filename and extension
    string filename = m_config["outfile"].as<string>();

    // amend for parallel output if required
    if(m_f->m_session->GetComm()->GetSize() != 1)
    {
        int    dot  = filename.find_last_of('.');
        string ext = filename.substr(dot,filename.length()-dot);
        string procId = "_P" + boost::lexical_cast<std::string>(
            m_f->m_session->GetComm()->GetRank());
        string start = filename.substr(0,dot);
        filename = start + procId + ext;
    }

    // Write solution.
    ofstream outfile(filename.c_str());
    m_f->m_exp[0]->WriteVtkHeader(outfile);

    int nfields, nstrips;
    if (m_f->m_fielddef.size() == 0)
    {
        nfields = 0;
    }
    else
    {
        nfields = m_f->m_fielddef[0]->m_fields.size();
    }
    m_f->m_session->LoadParameter("Strip_Z", nstrips, 1);

    // Homogeneous strip variant
    for(int s = 0; s < nstrips; ++s)
    {
        // For each field write out field data for each expansion.
        for (i = 0; i < m_f->m_exp[0]->GetNumElmts(); ++i)
        {
            m_f->m_exp[0]->WriteVtkPieceHeader(outfile,i,s);

            // For this expansion write out each field.
            for (j = 0; j < nfields; ++j)
            {
                m_f->m_exp[s*nfields+j]->WriteVtkPieceData(
                    outfile, i, m_f->m_fielddef[0]->m_fields[j]);
            }
            m_f->m_exp[0]->WriteVtkPieceFooter(outfile, i);
        }
    }
    m_f->m_exp[0]->WriteVtkFooter(outfile);
    cout << "Written file: " << filename << endl;
}

Member Data Documentation

ModuleKey Nektar::Utilities::OutputVtk::className

static

Initial value:

=
            GetModuleFactory().RegisterCreatorFunction(
                ModuleKey(eOutputModule, "vtk"), OutputVtk::create,
                "Writes a VTK file.")

Definition at line 54 of file MeshConvert/OutputModules/OutputVtk.h.

ModuleKey Nektar::Utilities::OutputVtk::m_className

static

Initial value:

=
    GetModuleFactory().RegisterCreatorFunction(
        ModuleKey(eOutputModule, "vtu"), OutputVtk::create,
        "Writes a VTU file.")

Definition at line 55 of file FieldConvert/OutputModules/OutputVtk.h.