vtkPolyData* Foam::vtkPV4Foam::lagrangianVTKMesh
(
const fvMesh& mesh,
const word& cloudName
)
{
vtkPolyData* vtkmesh = NULL;
if (debug)
{
Info<< "<beg> Foam::vtkPV4Foam::lagrangianVTKMesh - timePath "
<< mesh.time().timePath()/cloud::prefix/cloudName << endl;
printMemory();
}
// the region name is already in the mesh db
IOobjectList sprayObjs
(
mesh,
mesh.time().timeName(),
cloud::prefix/cloudName
);
IOobject* positionsPtr = sprayObjs.lookup(word("positions"));
if (positionsPtr)
{
Cloud<passiveParticle> parcels(mesh, cloudName, false);
if (debug)
{
Info<< "cloud with " << parcels.size() << " parcels" << endl;
}
vtkmesh = vtkPolyData::New();
vtkPoints* vtkpoints = vtkPoints::New();
vtkCellArray* vtkcells = vtkCellArray::New();
vtkpoints->Allocate(parcels.size());
vtkcells->Allocate(parcels.size());
vtkIdType particleId = 0;
forAllConstIter(Cloud<passiveParticle>, parcels, iter)
{
vtkInsertNextOpenFOAMPoint(vtkpoints, iter().position());
vtkcells->InsertNextCell(1, &particleId);
particleId++;
}
vtkmesh->SetPoints(vtkpoints);
vtkpoints->Delete();
vtkmesh->SetVerts(vtkcells);
vtkcells->Delete();
}
vtkPolyData* Foam::vtkPV4Foam::patchVTKMesh
(
const word& name,
const PatchType& p
)
{
vtkPolyData* vtkmesh = vtkPolyData::New();
if (debug)
{
Info<< "<beg> Foam::vtkPV4Foam::patchVTKMesh - " << name << endl;
printMemory();
}
// Convert OpenFOAM mesh vertices to VTK
const Foam::pointField& points = p.localPoints();
vtkPoints* vtkpoints = vtkPoints::New();
vtkpoints->Allocate(points.size());
forAll(points, i)
{
vtkInsertNextOpenFOAMPoint(vtkpoints, points[i]);
}
vtkUnstructuredGrid* Foam::vtkPV3Foam::volumeVTKMesh
(
const fvMesh& mesh,
polyDecomp& decompInfo
)
{
const cellModel& tet = *(cellModeller::lookup("tet"));
const cellModel& pyr = *(cellModeller::lookup("pyr"));
const cellModel& prism = *(cellModeller::lookup("prism"));
const cellModel& wedge = *(cellModeller::lookup("wedge"));
const cellModel& tetWedge = *(cellModeller::lookup("tetWedge"));
const cellModel& hex = *(cellModeller::lookup("hex"));
vtkUnstructuredGrid* vtkmesh = vtkUnstructuredGrid::New();
if (debug)
{
Info<< "<beg> Foam::vtkPV3Foam::volumeVTKMesh" << endl;
printMemory();
}
const cellShapeList& cellShapes = mesh.cellShapes();
// Number of additional points needed by the decomposition of polyhedra
label nAddPoints = 0;
// Number of additional cells generated by the decomposition of polyhedra
label nAddCells = 0;
// face owner is needed to determine the face orientation
const labelList& owner = mesh.faceOwner();
labelList& superCells = decompInfo.superCells();
labelList& addPointCellLabels = decompInfo.addPointCellLabels();
// Scan for cells which need to be decomposed and count additional points
// and cells
if (!reader_->GetUseVTKPolyhedron())
{
if (debug)
{
Info<< "... scanning for polyhedra" << endl;
}
forAll(cellShapes, cellI)
{
const cellModel& model = cellShapes[cellI].model();
if
(
model != hex
&& model != wedge
&& model != prism
&& model != pyr
&& model != tet
&& model != tetWedge
)
{
const cell& cFaces = mesh.cells()[cellI];
forAll(cFaces, cFaceI)
{
const face& f = mesh.faces()[cFaces[cFaceI]];
label nQuads = 0;
label nTris = 0;
f.nTrianglesQuads(mesh.points(), nTris, nQuads);
nAddCells += nQuads + nTris;
}
nAddCells--;
nAddPoints++;
}
}
}
// Set size of additional point addressing array
// (from added point to original cell)
addPointCellLabels.setSize(nAddPoints);
// Set size of additional cells mapping array
// (from added cell to original cell)
if (debug)
{
Info<<" mesh nCells = " << mesh.nCells() << nl
<<" nPoints = " << mesh.nPoints() << nl
<<" nAddCells = " << nAddCells << nl
<<" nAddPoints = " << nAddPoints << endl;
}
superCells.setSize(mesh.nCells() + nAddCells);
if (debug)
{
Info<< "... converting points" << endl;
}
// Convert OpenFOAM mesh vertices to VTK
vtkPoints* vtkpoints = vtkPoints::New();
vtkpoints->Allocate(mesh.nPoints() + nAddPoints);
const Foam::pointField& points = mesh.points();
forAll(points, i)
{
vtkInsertNextOpenFOAMPoint(vtkpoints, points[i]);
}
void Foam::vtkPVblockMesh::convertMeshBlocks
(
vtkMultiBlockDataSet* output,
int& blockNo
)
{
vtkDataArraySelection* selection = reader_->GetBlockSelection();
arrayRange& range = arrayRangeBlocks_;
range.block(blockNo); // set output block
label datasetNo = 0; // restart at dataset 0
const blockMesh& blkMesh = *meshPtr_;
const Foam::pointField& blockPoints = blkMesh.vertices();
if (debug)
{
Info<< "<beg> Foam::vtkPVblockMesh::convertMeshBlocks" << endl;
}
int blockI = 0;
const scalar scaleFactor = blkMesh.scaleFactor();
for
(
int partId = range.start();
partId < range.end();
++partId, ++blockI
)
{
if (!blockStatus_[partId])
{
continue;
}
const blockDescriptor& blockDef = blkMesh[blockI];
vtkUnstructuredGrid* vtkmesh = vtkUnstructuredGrid::New();
// Convert OpenFOAM mesh vertices to VTK
vtkPoints *vtkpoints = vtkPoints::New();
vtkpoints->Allocate( blockDef.nPoints() );
const labelList& blockLabels = blockDef.blockShape();
vtkmesh->Allocate(1);
vtkIdType nodeIds[8];
forAll(blockLabels, ptI)
{
vtkInsertNextOpenFOAMPoint
(
vtkpoints,
blockPoints[blockLabels[ptI]],
scaleFactor
);
nodeIds[ptI] = ptI;
}
vtkmesh->InsertNextCell
(
VTK_HEXAHEDRON,
8,
nodeIds
);
vtkmesh->SetPoints(vtkpoints);
vtkpoints->Delete();
AddToBlock
(
output, vtkmesh, range, datasetNo,
selection->GetArrayName(partId)
);
vtkmesh->Delete();
datasetNo++;
}
