Nektar::Utilities::OutputVtk Class Reference

Converter for VTK files. More...

#include <OutputVtk.h>

Inheritance diagram for Nektar::Utilities::OutputVtk:

Public Member Functions
	OutputVtk (NekMeshUtils::MeshSharedPtr m)
virtual	~OutputVtk ()
virtual void	Process ()
	Write mesh to output file. More...
Public Member Functions inherited from Nektar::NekMeshUtils::OutputModule
NEKMESHUTILS_EXPORT	OutputModule (MeshSharedPtr p_m)
NEKMESHUTILS_EXPORT void	OpenStream ()
	Open a file for output. More...
Public Member Functions inherited from Nektar::NekMeshUtils::Module
NEKMESHUTILS_EXPORT	Module (MeshSharedPtr p_m)
NEKMESHUTILS_EXPORT void	RegisterConfig (std::string key, std::string value=std::string())
	Register a configuration option with a module. More...
NEKMESHUTILS_EXPORT void	PrintConfig ()
	Print out all configuration options for a module. More...
NEKMESHUTILS_EXPORT void	SetDefaults ()
	Sets default configuration options for those which have not been set. More...
NEKMESHUTILS_EXPORT MeshSharedPtr	GetMesh ()
virtual NEKMESHUTILS_EXPORT void	ProcessVertices ()
	Extract element vertices. More...
virtual NEKMESHUTILS_EXPORT void	ProcessEdges (bool ReprocessEdges=true)
	Extract element edges. More...
virtual NEKMESHUTILS_EXPORT void	ProcessFaces (bool ReprocessFaces=true)
	Extract element faces. More...
virtual NEKMESHUTILS_EXPORT void	ProcessElements ()
	Generate element IDs. More...
virtual NEKMESHUTILS_EXPORT void	ProcessComposites ()
	Generate composites. More...
virtual NEKMESHUTILS_EXPORT void	ClearElementLinks ()

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

Static Public Attributes
static NekMeshUtils::ModuleKey	className

Private Member Functions
int	GetVtkCellType (std::string pType)

Additional Inherited Members
Protected Member Functions inherited from Nektar::NekMeshUtils::Module
NEKMESHUTILS_EXPORT void	ReorderPrisms (PerMap &perFaces)
	Reorder node IDs so that prisms and tetrahedra are aligned correctly. More...
NEKMESHUTILS_EXPORT void	PrismLines (int prism, PerMap &perFaces, std::set< int > &prismsDone, std::vector< ElementSharedPtr > &line)
Protected Attributes inherited from Nektar::NekMeshUtils::OutputModule
io::filtering_ostream	m_mshFile
	Output stream. More...
std::ofstream	m_mshFileStream
	Input stream. More...
Protected Attributes inherited from Nektar::NekMeshUtils::Module
MeshSharedPtr	m_mesh
	Mesh object. More...
std::map< std::string, ConfigOption >	m_config
	List of configuration values. More...

Detailed Description

Converter for VTK files.

Definition at line 46 of file utilities/NekMesh/OutputModules/OutputVtk.h.

Constructor & Destructor Documentation

OutputVtk()

Nektar::Utilities::OutputVtk::OutputVtk

(

NekMeshUtils::MeshSharedPtr

m

)

Definition at line 57 of file utilities/NekMesh/OutputModules/OutputVtk.cpp.

                                    : OutputModule(m)
{
    m_config["uncompress"] = ConfigOption(true, "0", "Uncompress xml sections");
    m_config["legacy"]        = ConfigOption(true, "0", "Output in legacy format");
}

References Nektar::NekMeshUtils::Module::m_config.

~OutputVtk()

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

virtual

Definition at line 63 of file utilities/NekMesh/OutputModules/OutputVtk.cpp.

{
}

Member Function Documentation

create()

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

inlinestatic

Creates an instance of this class.

Definition at line 52 of file utilities/NekMesh/OutputModules/OutputVtk.h.

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

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

GetVtkCellType()

int Nektar::Utilities::OutputVtk::GetVtkCellType ( std::string  pType )

private

Definition at line 67 of file utilities/NekMesh/OutputModules/OutputVtk.cpp.

{
    if (pType == "S")
    {
        return VTK_LINE;
    }
    else if (pType == "T")
    {
        return VTK_TRIANGLE;
    }
    else if (pType == "Q")
    {
        return VTK_QUAD;
    }
    else if (pType == "A")
    {
        return VTK_TETRA;
    }
    else if (pType == "P")
    {
        return VTK_PYRAMID;
    }
    else if (pType == "R")
    {
        return VTK_WEDGE;
    }
    else if (pType == "H")
    {
        return VTK_HEXAHEDRON;
    }
    else
    {
        ASSERTL0(false, "Element type not supported.");
        return 0;
    }
}

References ASSERTL0.

Referenced by Process().

Process()

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

virtual

Write mesh to output file.

Implements Nektar::NekMeshUtils::Module.

Definition at line 104 of file utilities/NekMesh/OutputModules/OutputVtk.cpp.

{
    if (m_mesh->m_verbose)
    {
        cout << "OutputVtk: Writing file..." << endl;
    }
 
    vtkUnstructuredGrid *vtkMesh   = vtkUnstructuredGrid::New();
    vtkPoints           *vtkPoints = vtkPoints::New();
 
    std::set<NodeSharedPtr> tmp(m_mesh->m_vertexSet.begin(),
                                m_mesh->m_vertexSet.end());
 
    for (auto &n : tmp)
    {
        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;
        }
        // Adjust vertex order to the vtk convention
        if (elmt[i]->GetTag() == "R")
        {
            std::swap(p[2], p[4]);
        }
        vtkMesh->InsertNextCell(GetVtkCellType(elmt[i]->GetTag()),
                                vertexCount, &p[0]);
    }
 
    vtkMesh->SetPoints(vtkPoints);
 
    // Write out the new mesh in XML or legacy format
    if (m_config["legacy"].beenSet)
    {
        vtkUnstructuredGridWriter *vtkMeshWriter = vtkUnstructuredGridWriter::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();
    }
    else // XML format
    {
        vtkXMLUnstructuredGridWriter *vtkMeshWriter = vtkXMLUnstructuredGridWriter::New();
        vtkMeshWriter->SetFileName(m_config["outfile"].as<string>().c_str());
 
#if VTK_MAJOR_VERSION <= 5
        vtkMeshWriter->SetInput(vtkMesh);
#else
        vtkMeshWriter->SetInputData(vtkMesh);
#endif
        if (m_config["uncompress"].beenSet)
        {
            vtkMeshWriter->SetDataModeToAscii();
        }
        vtkMeshWriter->Update();
    }
}

References GetVtkCellType(), Nektar::NekMeshUtils::Module::m_config, Nektar::NekMeshUtils::Module::m_mesh, and CellMLToNektar.cellml_metadata::p.

Member Data Documentation

className

ModuleKey Nektar::Utilities::OutputVtk::className

static

Initial value:

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

Definition at line 56 of file utilities/NekMesh/OutputModules/OutputVtk.h.