185 lines
5.8 KiB
C++
185 lines
5.8 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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// 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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// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2014 UT-Battelle, LLC.
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// Copyright 2014 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/cont/ArrayHandleCounting.h>
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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/DynamicCellSet.h>
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#include <vtkm/worklet/CellDeepCopy.h>
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#include <vtkm/worklet/DispatcherMapTopology.h>
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namespace
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{
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class RemoveAllGhosts
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{
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public:
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VTKM_CONT
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RemoveAllGhosts() {}
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VTKM_EXEC bool operator()(const vtkm::UInt8& value) const { return (value == 0); }
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};
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class RemoveGhostByType
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{
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public:
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VTKM_CONT
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RemoveGhostByType()
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: RemoveType(0)
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{
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}
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VTKM_CONT
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RemoveGhostByType(const vtkm::UInt8& val)
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: RemoveType(static_cast<vtkm::UInt8>(~val))
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{
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}
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VTKM_EXEC bool operator()(const vtkm::UInt8& value) const
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{
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return value == 0 || (value & RemoveType);
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}
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private:
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vtkm::UInt8 RemoveType;
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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 GhostZone::GhostZone()
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: vtkm::filter::FilterDataSetWithField<GhostZone>()
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, RemoveAll(false)
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, ConvertToUnstructured(false)
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, RemoveVals(0)
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{
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this->SetActiveField("vtkmGhostCells");
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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 vtkm::cont::DataSet GhostZone::DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::cont::ArrayHandle<T, StorageType>& field,
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const vtkm::filter::FieldMetadata& fieldMeta,
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vtkm::filter::PolicyBase<DerivedPolicy> policy)
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{
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//get the cells and coordinates of the dataset
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
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vtkm::cont::DynamicCellSet cellOut;
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if (this->GetRemoveAllGhost())
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cellOut = this->Worklet.Run(vtkm::filter::ApplyPolicy(cells, policy),
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field,
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fieldMeta.GetAssociation(),
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RemoveAllGhosts());
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else if (this->GetRemoveByType())
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cellOut = this->Worklet.Run(vtkm::filter::ApplyPolicy(cells, policy),
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field,
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fieldMeta.GetAssociation(),
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RemoveGhostByType(this->GetRemoveType()));
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else
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throw vtkm::cont::ErrorFilterExecution("Unsupported ghost cell removal type");
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vtkm::cont::DataSet output;
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output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
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if (this->GetConvertOutputToUnstructured())
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{
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vtkm::cont::CellSetExplicit<> explicitCells;
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explicitCells = this->ConvertOutputToUnstructured(cellOut);
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output.AddCellSet(explicitCells);
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}
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else
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output.AddCellSet(cellOut);
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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 GhostZone::DoMapField(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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vtkm::filter::PolicyBase<DerivedPolicy>)
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{
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if (fieldMeta.IsPointField())
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{
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//we copy the input handle to the result dataset, reusing the metadata
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result.AddField(fieldMeta.AsField(input));
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return true;
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}
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else if (fieldMeta.IsCellField())
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{
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vtkm::cont::ArrayHandle<T> out = this->Worklet.ProcessCellField(input);
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result.AddField(fieldMeta.AsField(out));
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return true;
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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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inline VTKM_CONT vtkm::cont::CellSetExplicit<> GhostZone::ConvertOutputToUnstructured(
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vtkm::cont::DynamicCellSet& inCells)
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{
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using PermStructured2d = vtkm::cont::CellSetPermutation<vtkm::cont::CellSetStructured<2>>;
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using PermStructured3d = vtkm::cont::CellSetPermutation<vtkm::cont::CellSetStructured<3>>;
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using PermExplicit = vtkm::cont::CellSetPermutation<vtkm::cont::CellSetExplicit<>>;
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using PermExplicitSingle = vtkm::cont::CellSetPermutation<vtkm::cont::CellSetSingleType<>>;
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vtkm::cont::CellSetExplicit<> explicitCells;
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if (inCells.IsSameType(PermStructured2d()))
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{
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PermStructured2d perm = inCells.Cast<PermStructured2d>();
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vtkm::worklet::CellDeepCopy::Run(perm, explicitCells);
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}
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else if (inCells.IsSameType(PermStructured3d()))
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{
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PermStructured3d perm = inCells.Cast<PermStructured3d>();
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vtkm::worklet::CellDeepCopy::Run(perm, explicitCells);
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}
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else if (inCells.IsSameType(PermExplicit()))
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{
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PermExplicit perm = inCells.Cast<PermExplicit>();
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vtkm::worklet::CellDeepCopy::Run(perm, explicitCells);
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}
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else if (inCells.IsSameType(PermExplicitSingle()))
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{
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PermExplicitSingle perm = inCells.Cast<PermExplicitSingle>();
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vtkm::worklet::CellDeepCopy::Run(perm, explicitCells);
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}
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else
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throw vtkm::cont::ErrorFilterExecution("Unsupported permutation cell type");
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return explicitCells;
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}
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}
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}
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