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========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2023 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 "VTKedgeFormat.H"
#include "OFstream.H"
#include "clock.H"
#include "IFstream.H"
#include "vtkUnstructuredReader.H"
#include "Time.H"
// * * * * * * * * * * * * Protected Member Functions * * * * * * * * * * * //
void Foam::fileFormats::VTKedgeFormat::writeHeader
(
Ostream& os,
const pointField& pointLst
)
{
// Write header
os << "# vtk DataFile Version 2.0" << nl
<< "featureEdgeMesh written " << clock::dateTime().c_str() << nl
<< "ASCII" << nl
<< nl
<< "DATASET POLYDATA" << nl;
// Write vertex coords
os << "POINTS " << pointLst.size() << " float" << nl;
forAll(pointLst, ptI)
{
const point& pt = pointLst[ptI];
os << pt.x() << ' ' << pt.y() << ' ' << pt.z() << nl;
}
}
void Foam::fileFormats::VTKedgeFormat::writeEdges
(
Ostream& os,
const UList<edge>& edgeLst
)
{
os << "LINES " << edgeLst.size() << ' ' << 3*edgeLst.size() << nl;
forAll(edgeLst, edgeI)
{
const edge& e = edgeLst[edgeI];
os << "2 " << e[0] << ' ' << e[1] << nl;
}
}
// * * * * * * * * * * * * * * * * Constructors * * * * * * * * * * * * * * //
Foam::fileFormats::VTKedgeFormat::VTKedgeFormat
(
const fileName& filename
)
{
read(filename);
}
// * * * * * * * * * * * * * * * Member Functions * * * * * * * * * * * * * //
bool Foam::fileFormats::VTKedgeFormat::read
(
const fileName& filename
)
{
IFstream is(filename);
if (!is.good())
{
FatalErrorInFunction
<< "Cannot read file " << filename
<< exit(FatalError);
}
// Construct dummy time so we have something to create an objectRegistry
// from
Time dummyTime
(
"dummyRoot",
"dummyCase",
false // enableFunctionObjects
);
// Make dummy object registry
objectRegistry obr
(
IOobject
(
"dummy",
dummyTime,
IOobject::NO_READ,
IOobject::NO_WRITE,
false
)
);
// Construct reader to read file
vtkUnstructuredReader reader(obr, is);
// Extract lines
storedPoints().transfer(reader.points());
label nEdges = 0;
forAll(reader.lines(), lineI)
{
nEdges += reader.lines()[lineI].size()-1;
}
storedEdges().setSize(nEdges);
nEdges = 0;
forAll(reader.lines(), lineI)
{
const labelList& verts = reader.lines()[lineI];
for (label i = 1; i < verts.size(); i++)
{
storedEdges()[nEdges++] = edge(verts[i-1], verts[i]);
}
}
return true;
}
void Foam::fileFormats::VTKedgeFormat::write
(
const fileName& filename,
const edgeMesh& eMesh
)
{
OFstream os(filename);
if (!os.good())
{
FatalErrorInFunction
<< "Cannot open file for writing " << filename
<< exit(FatalError);
}
writeHeader(os, eMesh.points());
writeEdges(os, eMesh.edges());
}
// ************************************************************************* //
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