patchWriter.C

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/*---------------------------------------------------------------------------*\
  =========                 |
  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   \\    /   O peration     |
    \\  /    A nd           | Copyright (C) 2011 OpenFOAM Foundation
     \\/     M anipulation  |
-------------------------------------------------------------------------------
License
    This file is part of OpenFOAM.
 
    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.
 
    OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    for more details.
 
    You should have received a copy of the GNU General Public License
    along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
 
\*---------------------------------------------------------------------------*/
 
#include "patchWriter.H"
#include "writeFuns.H"
 
// * * * * * * * * * * * * * * * * Constructors  * * * * * * * * * * * * * * //
 
Foam::patchWriter::patchWriter
(
    const vtkMesh& vMesh,
    const bool binary,
    const bool nearCellValue,
    const fileName& fName,
    const labelList& patchIDs
)
:
    vMesh_(vMesh),
    binary_(binary),
    nearCellValue_(nearCellValue),
    fName_(fName),
    patchIDs_(patchIDs),
    // Use binary mode in case we write binary.
    // Causes windows reading to fail if we don't
    os_(fName.c_str(), 
    ios_base::out|ios_base::binary)
{
    const fvMesh& mesh = vMesh_.mesh();
    const polyBoundaryMesh& patches = mesh.boundaryMesh();
 
    // Write header
    if (patchIDs_.size() == 1)
    {
        writeFuns::writeHeader(os_, binary_, patches[patchIDs_[0]].name());
    }
    else
    {
        writeFuns::writeHeader(os_, binary_, "patches");
    }
    os_ << "DATASET POLYDATA" << std::endl;
 
    // Write topology
    nPoints_ = 0;
    nFaces_ = 0;
    label nFaceVerts = 0;
 
    forAll(patchIDs_, i)
    {
        const polyPatch& pp = patches[patchIDs_[i]];
 
        nPoints_ += pp.nPoints();
        nFaces_ += pp.size();
 
        forAll(pp, faceI)
        {
            nFaceVerts += pp[faceI].size() + 1;
        }
    }
 
    os_ << "POINTS " << nPoints_ << " double" << std::endl;
 
    DynamicList<doubleScalar> ptField(3*nPoints_);
 
    forAll(patchIDs_, i)
    {
        const polyPatch& pp = patches[patchIDs_[i]];
 
        writeFuns::insert(pp.localPoints(), ptField);
    }
    writeFuns::write(os_, binary_, ptField);
 
    os_ << "POLYGONS " << nFaces_ << ' ' << nFaceVerts << std::endl;
 
    DynamicList<label> vertLabels(nFaceVerts);
 
    label offset = 0;
 
    forAll(patchIDs_, i)
    {
        const polyPatch& pp = patches[patchIDs_[i]];
 
        forAll(pp, faceI)
        {
            const face& f = pp.localFaces()[faceI];
 
            vertLabels.append(f.size());
            writeFuns::insert(f + offset, vertLabels);
        }
        offset += pp.nPoints();
    }
    writeFuns::write(os_, binary_, vertLabels);
}
 
 
// * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
void Foam::patchWriter::writePatchIDs()
{
    const fvMesh& mesh = vMesh_.mesh();
 
    DynamicList<doubleScalar> fField(nFaces_);
 
    os_ << "patchID 1 " << nFaces_ << " double" << std::endl;
 
    forAll(patchIDs_, i)
    {
        label patchI = patchIDs_[i];
 
        const polyPatch& pp = mesh.boundaryMesh()[patchI];
 
        if (!isA<emptyPolyPatch>(pp))
        {
            writeFuns::insert(scalarField(pp.size(), patchI), fField);
        }
    }
    writeFuns::write(os_, binary_, fField);
}
 
 
// ************************************************************************* //