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ENH: write patches as vtkPolyData instead of vtkUnstructuredGrid

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- slightly better memory efficiency and file sizes
- consistent with library reader
This commit is contained in:
Mark Olesen
2010-05-07 09:35:40 +02:00
parent 64ac5cbc78
commit 1b4450890a
9 changed files with 64 additions and 89 deletions
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25
applications/utilities/postProcessing/dataConversion/foamToVTK/patchWriter.C
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@ -56,7 +56,7 @@ Foam::patchWriter::patchWriter
{
writeFuns::writeHeader(os_, binary_, "patches");
}
os_ << "DATASET UNSTRUCTURED_GRID" << std::endl;
os_ << "DATASET POLYDATA" << std::endl;
// Write topology
nPoints_ = 0;
@ -88,10 +88,9 @@ Foam::patchWriter::patchWriter
}
writeFuns::write(os_, binary_, ptField);
os_ << "CELLS " << nFaces_ << ' ' << nFaceVerts << std::endl;
os_ << "POLYGONS " << nFaces_ << ' ' << nFaceVerts << std::endl;
DynamicList<label> vertLabels(nFaceVerts);
DynamicList<label> faceTypes(nFaceVerts);
label offset = 0;
@ -103,30 +102,12 @@ Foam::patchWriter::patchWriter
{
const face& f = pp.localFaces()[faceI];
const label fSize = f.size();
vertLabels.append(fSize);
vertLabels.append(f.size());
writeFuns::insert(f + offset, vertLabels);
if (fSize == 3)
{
faceTypes.append(vtkTopo::VTK_TRIANGLE);
}
else if (fSize == 4)
{
faceTypes.append(vtkTopo::VTK_QUAD);
}
else
{
faceTypes.append(vtkTopo::VTK_POLYGON);
}
}
offset += pp.nPoints();
}
writeFuns::write(os_, binary_, vertLabels);
os_ << "CELL_TYPES " << nFaces_ << std::endl;
writeFuns::write(os_, binary_, faceTypes);
}