Detailed Description

Writes a basic PVD file for use with Paraview.

Definition at line 17 of file PVDFile.h.

#include <PVDFile.h>

Public Member Functions
	PVDFile (std::string pvd_fname)
	Set a PVD file path.
void	addVTUFile (std::string const &vtu_fname, double timestep)
	Add a VTU file to this PVD file.

Public Attributes
std::string const	pvd_filename

Private Attributes
std::vector< std::pair< double, std::string > >	_datasets

Constructor & Destructor Documentation

◆ PVDFile()

MeshLib::IO::PVDFile::PVDFile ( std::string pvd_fname )

inlineexplicit

Set a PVD file path.

Definition at line 21 of file PVDFile.h.

        : pvd_filename(std::move(pvd_fname))
    {
    }

References pvd_filename.

Member Function Documentation

◆ addVTUFile()

void MeshLib::IO::PVDFile::addVTUFile	(	std::string const &	vtu_fname,
		double	timestep )

Add a VTU file to this PVD file.

Definition at line 23 of file PVDFile.cpp.

{
#ifdef USE_PETSC
    int mpi_size;
    MPI_Comm_size(BaseLib::MPI::OGS_COMM_WORLD, &mpi_size);
    if (mpi_size == 1)
    {
        _datasets.emplace_back(timestep, vtu_fname);
    }
    else
    {
        auto const vtu_file_name =
            getVtuFileNameForPetscOutputWithoutExtension(vtu_fname);
 
        _datasets.emplace_back(timestep, vtu_file_name + ".pvtu");
    }
#else
    _datasets.emplace_back(timestep, vtu_fname);
#endif
 
    std::ofstream fh(pvd_filename.c_str());
    if (!fh)
    {
        OGS_FATAL("could not open file `{:s}'", pvd_filename);
    }
 
    fh << std::setprecision(std::numeric_limits<double>::max_digits10);
 
    fh << "<?xml version=\"1.0\"?>\n"
          "<VTKFile type=\"Collection\" version=\"0.1\" "
          "byte_order=\"LittleEndian\""
          " compressor=\"vtkZLibDataCompressor\">\n"
          "  <Collection>\n";
 
    for (auto const& pair : _datasets)
    {
        fh << "    <DataSet timestep=\"" << pair.first
           << "\" group=\"\" part=\"0\" file=\"" << pair.second << "\"/>\n";
    }
 
    fh << "  </Collection>\n</VTKFile>\n";
}

References _datasets, MeshLib::IO::getVtuFileNameForPetscOutputWithoutExtension(), BaseLib::MPI::OGS_COMM_WORLD, OGS_FATAL, and pvd_filename.

Referenced by ProcessLib::outputMeshVtk().

Member Data Documentation

◆ _datasets

std::vector<std::pair<double, std::string> > MeshLib::IO::PVDFile::_datasets

private

Definition at line 33 of file PVDFile.h.

Referenced by addVTUFile().

◆ pvd_filename

std::string const MeshLib::IO::PVDFile::pvd_filename

Definition at line 29 of file PVDFile.h.

Referenced by PVDFile(), and addVTUFile().

The documentation for this class was generated from the following files: