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Merge topic 'zfp-output-fields'
478f765db Attach compressed ZFP data as WholeDatSet field Acked-by: Kitware Robot <kwrobot@kitware.com> Merge-request: !2910
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docs/changelog/zfp-output-fields.md
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docs/changelog/zfp-output-fields.md
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# Attach compressed ZFP data as WholeDatSet field
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Previously, point fields compressed by ZFP were attached as point fields
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on the output. However, using them as a point field would cause
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problems. So, instead attache them as `WholeDataSet` fields.
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Also fixed a problem where the 1D decompressor created an output of the
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wrong size.
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@ -30,8 +30,12 @@ VTKM_CONT vtkm::cont::DataSet ZFPCompressor1D::DoExecute(const vtkm::cont::DataS
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compressed = compressor.Compress(concrete, rate, field.GetNumberOfValues());
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});
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// TODO: is it really PointField or WHOLE_MESH, should we do it the same way as Histogram?
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return this->CreateResultFieldPoint(input, "compressed", compressed);
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// Note: the compressed array is set as a WholeDataSet field. It is really associated with
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// the points, but the size does not match and problems will occur if the user attempts to
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// use it as a point data set. The decompressor will place the data back as a point field.
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// (This might cause issues if cell fields are ever supported.)
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return this->CreateResultField(
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input, "compressed", vtkm::cont::Field::Association::WholeDataSet, compressed);
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}
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} // namespace zfp
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} // namespace filter
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@ -35,8 +35,12 @@ VTKM_CONT vtkm::cont::DataSet ZFPCompressor2D::DoExecute(const vtkm::cont::DataS
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compressed = compressor.Compress(concrete, rate, pointDimensions);
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});
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// TODO: is it really PointField or WHOLE_MESH, should we do it the same way as Histogram?
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return this->CreateResultFieldPoint(input, "compressed", compressed);
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// Note: the compressed array is set as a WholeDataSet field. It is really associated with
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// the points, but the size does not match and problems will occur if the user attempts to
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// use it as a point data set. The decompressor will place the data back as a point field.
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// (This might cause issues if cell fields are ever supported.)
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return this->CreateResultField(
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input, "compressed", vtkm::cont::Field::Association::WholeDataSet, compressed);
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}
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} // namespace zfp
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} // namespace filter
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@ -35,8 +35,12 @@ VTKM_CONT vtkm::cont::DataSet ZFPCompressor3D::DoExecute(const vtkm::cont::DataS
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compressed = compressor.Compress(concrete, rate, pointDimensions);
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});
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// TODO: is it really PointField or WHOLE_MESH, should we do it the same way as Histogram?
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return this->CreateResultFieldPoint(input, "compressed", compressed);
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// Note: the compressed array is set as a WholeDataSet field. It is really associated with
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// the points, but the size does not match and problems will occur if the user attempts to
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// use it as a point data set. The decompressor will place the data back as a point field.
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// (This might cause issues if cell fields are ever supported.)
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return this->CreateResultField(
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input, "compressed", vtkm::cont::Field::Association::WholeDataSet, compressed);
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}
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} // namespace zfp
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} // namespace filter
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@ -26,9 +26,13 @@ VTKM_CONT vtkm::cont::DataSet ZFPDecompressor1D::DoExecute(const vtkm::cont::Dat
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vtkm::cont::ArrayHandle<vtkm::Int64> compressed;
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vtkm::cont::ArrayCopyShallowIfPossible(this->GetFieldFromDataSet(input).GetData(), compressed);
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vtkm::cont::CellSetStructured<1> cellSet;
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input.GetCellSet().AsCellSet(cellSet);
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vtkm::Id pointDimensions = cellSet.GetPointDimensions();
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vtkm::cont::ArrayHandle<vtkm::Float64> decompressed;
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vtkm::worklet::ZFP1DDecompressor decompressor;
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decompressor.Decompress(compressed, decompressed, this->rate, compressed.GetNumberOfValues());
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decompressor.Decompress(compressed, decompressed, this->rate, pointDimensions);
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return this->CreateResultFieldPoint(input, "decompressed", decompressed);
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}
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