foam-extend4.1-coherent-io/applications/utilities/postProcessing/dataConversion/foamToVTK/vtkMesh.C

/*---------------------------------------------------------------------------*\
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License
    This file is part of OpenFOAM.

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    under the terms of the GNU General Public License as published by the
    Free Software Foundation; either version 2 of the License, or (at your
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    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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    along with OpenFOAM; if not, write to the Free Software Foundation,
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Description

\*---------------------------------------------------------------------------*/

#include "vtkMesh.H"
#include "fvMeshSubset.H"
#include "Time.H"
#include "cellSet.H"

// * * * * * * * * * * * * * Private Member Functions  * * * * * * * * * * * //


// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //

// Construct from components
Foam::vtkMesh::vtkMesh
(
    const IOobject& io,
    const word& setName
)
:
    fvMesh(io),
    subsetMesh_
    (
        IOobject
        (
            "subset",
            io.time().constant(),
            *this,
            IOobject::NO_READ,
            IOobject::NO_WRITE
        ),
        *this
    ),
    setName_(setName)
{
    if (setName.size())
    {
        // Read cellSet using whole mesh
        cellSet currentSet(*this, setName_);

        // Set current subset
        subsetMesh_.setLargeCellSubset(currentSet);
    }
}


// * * * * * * * * * * * * * * * * Destructor  * * * * * * * * * * * * * * * //

Foam::vtkMesh::~vtkMesh()
{}


// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //

Foam::polyMesh::readUpdateState Foam::vtkMesh::readUpdate()
{
    polyMesh::readUpdateState meshState = fvMesh::readUpdate();

    if (meshState != polyMesh::UNCHANGED)
    {
        // Note: since fvMeshSubset has no movePoints() functionality,
        //  reconstruct the subset even if only movement.

        topoPtr_.clear();
        pointMeshPtr_.clear();

        if (setName_.size())
        {
            Info<< "Subsetting mesh based on cellSet " << setName_ << endl;

            // Read cellSet using whole mesh
            cellSet currentSet(*this, setName_);

            subsetMesh_.setLargeCellSubset(currentSet);
        }
    }

    return meshState;
}


// ************************************************************************* //