mirror of
https://gitlab.kitware.com/vtk/vtk-m
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109 lines
3.4 KiB
C++
109 lines
3.4 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 Sandia Corporation.
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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-AC04-94AL85000 with Sandia Corporation,
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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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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 ExternalFaces::ExternalFaces()
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: vtkm::filter::FilterDataSet<ExternalFaces>()
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, CompactPoints(false)
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{
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}
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namespace
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{
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template <typename BasePolicy>
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struct CellSetExplicitPolicy : public BasePolicy
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{
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using AllCellSetList = vtkm::cont::CellSetListTagExplicitDefault;
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};
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template <typename DerivedPolicy>
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inline vtkm::filter::PolicyBase<CellSetExplicitPolicy<DerivedPolicy>> GetCellSetExplicitPolicy(
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const vtkm::filter::PolicyBase<DerivedPolicy>&)
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{
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return vtkm::filter::PolicyBase<CellSetExplicitPolicy<DerivedPolicy>>();
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}
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} // anonymous namespace
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//-----------------------------------------------------------------------------
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template <typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT vtkm::filter::ResultDataSet ExternalFaces::DoExecute(
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const vtkm::cont::DataSet& input,
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const vtkm::filter::PolicyBase<DerivedPolicy>& policy,
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const DeviceAdapter&)
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{
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//1. extract the cell set
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const vtkm::cont::DynamicCellSet& cells = input.GetCellSet(this->GetActiveCellSetIndex());
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//2. using the policy convert the dynamic cell set, and run the
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// external faces worklet
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vtkm::cont::CellSetExplicit<> outCellSet(cells.GetName());
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vtkm::worklet::ExternalFaces exfaces;
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exfaces.Run(vtkm::filter::ApplyPolicyUnstructured(cells, policy), outCellSet, DeviceAdapter());
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//3. create the output dataset
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vtkm::cont::DataSet output;
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output.AddCellSet(outCellSet);
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output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
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if (this->CompactPoints)
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{
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this->Compactor.SetCompactPointFields(true);
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return this->Compactor.DoExecute(output, GetCellSetExplicitPolicy(policy), DeviceAdapter());
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}
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else
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{
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return vtkm::filter::ResultDataSet(output);
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}
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}
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//-----------------------------------------------------------------------------
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template <typename T, typename StorageType, typename DerivedPolicy, typename DeviceAdapter>
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inline VTKM_CONT bool ExternalFaces::DoMapField(
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vtkm::filter::ResultDataSet& 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>& policy,
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const DeviceAdapter&)
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{
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if (fieldMeta.IsPointField())
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{
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if (this->CompactPoints)
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{
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return this->Compactor.DoMapField(result, input, fieldMeta, policy, DeviceAdapter());
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}
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else
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{
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result.GetDataSet().AddField(fieldMeta.AsField(input));
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return true;
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}
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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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