5498ecd35b
Generally, fields that have a WHOLE_MESH association might be valid even if the structure of the mesh changes. Thus, it makes sense for filters to pass this data pretty much all the time. Also cleaned up some code and comments to make the relationship between `MapFieldOntoOutput` and `DoMapField` more clear.
93 lines
2.6 KiB
C++
93 lines
2.6 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtk_m_filter_Mask_hxx
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#define vtk_m_filter_Mask_hxx
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#include <vtkm/filter/MapFieldPermutation.h>
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namespace
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{
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struct CallWorklet
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{
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vtkm::Id Stride;
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vtkm::cont::DynamicCellSet& Output;
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vtkm::worklet::Mask& Worklet;
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CallWorklet(vtkm::Id stride, vtkm::cont::DynamicCellSet& output, vtkm::worklet::Mask& worklet)
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: Stride(stride)
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, Output(output)
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, Worklet(worklet)
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{
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}
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template <typename CellSetType>
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void operator()(const CellSetType& cells) const
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{
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this->Output = this->Worklet.Run(cells, this->Stride);
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}
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};
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} // end anon namespace
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namespace vtkm
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{
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namespace filter
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{
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//-----------------------------------------------------------------------------
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inline VTKM_CONT Mask::Mask()
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: vtkm::filter::FilterDataSet<Mask>()
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, Stride(1)
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, CompactPoints(false)
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{
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}
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//-----------------------------------------------------------------------------
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template <typename DerivedPolicy>
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inline VTKM_CONT vtkm::cont::DataSet Mask::DoExecute(const vtkm::cont::DataSet& input,
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vtkm::filter::PolicyBase<DerivedPolicy> policy)
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{
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet();
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vtkm::cont::DynamicCellSet cellOut;
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CallWorklet workletCaller(this->Stride, cellOut, this->Worklet);
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vtkm::filter::ApplyPolicyCellSet(cells, policy, *this).CastAndCall(workletCaller);
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// create the output dataset
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vtkm::cont::DataSet output;
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output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
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output.SetCellSet(cellOut);
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return output;
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}
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//-----------------------------------------------------------------------------
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template <typename DerivedPolicy>
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inline VTKM_CONT bool Mask::MapFieldOntoOutput(vtkm::cont::DataSet& result,
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const vtkm::cont::Field& field,
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vtkm::filter::PolicyBase<DerivedPolicy>)
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{
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if (field.IsFieldPoint() || field.IsFieldGlobal())
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{
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result.AddField(field); // pass through
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return true;
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}
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else if (field.IsFieldCell())
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{
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return vtkm::filter::MapFieldPermutation(field, this->Worklet.GetValidCellIds(), result);
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}
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else
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{
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return false;
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}
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}
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}
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}
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#endif
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