113 lines
3.2 KiB
C++
113 lines
3.2 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_Triangulate_hxx
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#define vtk_m_filter_Triangulate_hxx
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#include <vtkm/filter/Triangulate.h>
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#include <vtkm/filter/MapFieldPermutation.h>
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namespace
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{
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class DeduceCellSet
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{
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vtkm::worklet::Triangulate& Worklet;
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vtkm::cont::CellSetSingleType<>& OutCellSet;
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public:
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DeduceCellSet(vtkm::worklet::Triangulate& worklet, vtkm::cont::CellSetSingleType<>& outCellSet)
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: Worklet(worklet)
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, OutCellSet(outCellSet)
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{
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}
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template <typename CellSetType>
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void operator()(const CellSetType& vtkmNotUsed(cellset)) const
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{
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}
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};
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template <>
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void DeduceCellSet::operator()(const vtkm::cont::CellSetExplicit<>& cellset) const
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{
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this->OutCellSet = Worklet.Run(cellset);
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}
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template <>
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void DeduceCellSet::operator()(const vtkm::cont::CellSetStructured<2>& cellset) const
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{
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this->OutCellSet = Worklet.Run(cellset);
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}
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template <>
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void DeduceCellSet::operator()(const vtkm::cont::CellSetStructured<3>& cellset) const
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{
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this->OutCellSet = Worklet.Run(cellset);
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}
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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 Triangulate::Triangulate()
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: vtkm::filter::FilterDataSet<Triangulate>()
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, Worklet()
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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 Triangulate::DoExecute(
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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::CellSetSingleType<> outCellSet;
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DeduceCellSet triangulate(this->Worklet, outCellSet);
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vtkm::cont::CastAndCall(vtkm::filter::ApplyPolicyCellSet(cells, policy, *this), triangulate);
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// create the output dataset
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vtkm::cont::DataSet output;
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output.SetCellSet(outCellSet);
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output.AddCoordinateSystem(input.GetCoordinateSystem(this->GetActiveCoordinateSystemIndex()));
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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 Triangulate::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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// point data is copied as is because it was not collapsed
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if (field.IsFieldPoint())
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{
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result.AddField(field);
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return true;
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}
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// cell data must be scattered to the cells created per input cell
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if (field.IsFieldCell())
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{
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vtkm::cont::ArrayHandle<vtkm::Id> permutation =
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this->Worklet.GetOutCellScatter().GetOutputToInputMap();
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return vtkm::filter::MapFieldPermutation(field, permutation, result);
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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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#endif
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