mirror of
https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-19 02:25:42 +00:00
136 lines
4.2 KiB
C++
136 lines
4.2 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_ExtractGeometry_hxx
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#define vtk_m_filter_ExtractGeometry_hxx
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#include <vtkm/cont/ArrayHandlePermutation.h>
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#include <vtkm/cont/CellSetPermutation.h>
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#include <vtkm/cont/CoordinateSystem.h>
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#include <vtkm/cont/DynamicCellSet.h>
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namespace
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{
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struct CallWorker
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{
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vtkm::cont::DynamicCellSet& Output;
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vtkm::worklet::ExtractGeometry& Worklet;
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const vtkm::cont::CoordinateSystem& Coords;
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const vtkm::cont::ImplicitFunctionHandle& Function;
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bool ExtractInside;
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bool ExtractBoundaryCells;
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bool ExtractOnlyBoundaryCells;
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CallWorker(vtkm::cont::DynamicCellSet& output,
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vtkm::worklet::ExtractGeometry& worklet,
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const vtkm::cont::CoordinateSystem& coords,
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const vtkm::cont::ImplicitFunctionHandle& function,
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bool extractInside,
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bool extractBoundaryCells,
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bool extractOnlyBoundaryCells)
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: Output(output)
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, Worklet(worklet)
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, Coords(coords)
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, Function(function)
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, ExtractInside(extractInside)
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, ExtractBoundaryCells(extractBoundaryCells)
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, ExtractOnlyBoundaryCells(extractOnlyBoundaryCells)
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{
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}
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template <typename CellSetType>
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void operator()(const CellSetType& cellSet) const
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{
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this->Output = this->Worklet.Run(cellSet,
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this->Coords,
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this->Function,
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this->ExtractInside,
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this->ExtractBoundaryCells,
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this->ExtractOnlyBoundaryCells);
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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 ExtractGeometry::ExtractGeometry()
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: vtkm::filter::FilterDataSet<ExtractGeometry>()
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, ExtractInside(true)
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, ExtractBoundaryCells(false)
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, ExtractOnlyBoundaryCells(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 ExtractGeometry::DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy)
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{
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// extract the input cell set and coordinates
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet();
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const vtkm::cont::CoordinateSystem& coords =
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input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex());
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vtkm::cont::DynamicCellSet outCells;
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CallWorker worker(outCells,
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this->Worklet,
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coords,
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this->Function,
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this->ExtractInside,
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this->ExtractBoundaryCells,
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this->ExtractOnlyBoundaryCells);
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vtkm::filter::ApplyPolicyCellSet(cells, policy).CastAndCall(worker);
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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(outCells);
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return output;
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy>
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inline VTKM_CONT bool ExtractGeometry::DoMapField(
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vtkm::cont::DataSet& result,
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const vtkm::cont::ArrayHandle<T, StorageType>& input,
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const vtkm::filter::FieldMetadata& fieldMeta,
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const vtkm::filter::PolicyBase<DerivedPolicy>&)
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{
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vtkm::cont::VariantArrayHandle output;
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if (fieldMeta.IsPointField())
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{
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output = input; // pass through, points aren't changed.
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}
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else if (fieldMeta.IsCellField())
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{
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output = this->Worklet.ProcessCellField(input);
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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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// use the same meta data as the input so we get the same field name, etc.
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result.AddField(fieldMeta.AsField(output));
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return true;
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}
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}
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}
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#endif
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