vtk-m/vtkm/worklet/Tetrahedralize.h
2019-01-11 12:23:10 -07:00

103 lines
3.2 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//
// Copyright 2014 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
// Copyright 2014 UT-Battelle, LLC.
// Copyright 2014 Los Alamos National Security.
//
// Under the terms of Contract DE-NA0003525 with NTESS,
// the U.S. Government retains certain rights in this software.
//
// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
// Laboratory (LANL), the U.S. Government retains certain rights in
// this software.
//============================================================================
#ifndef vtkm_m_worklet_Tetrahedralize_h
#define vtkm_m_worklet_Tetrahedralize_h
#include <vtkm/worklet/tetrahedralize/TetrahedralizeExplicit.h>
#include <vtkm/worklet/tetrahedralize/TetrahedralizeStructured.h>
namespace vtkm
{
namespace worklet
{
class Tetrahedralize
{
public:
//
// Distribute multiple copies of cell data depending on cells create from original
//
struct DistributeCellData : public vtkm::worklet::WorkletMapField
{
using ControlSignature = void(FieldIn inIndices, FieldOut outIndices);
using ExecutionSignature = void(_1, _2);
using ScatterType = vtkm::worklet::ScatterCounting;
template <typename CountArrayType>
VTKM_CONT static ScatterType MakeScatter(const CountArrayType& countArray)
{
return ScatterType(countArray);
}
template <typename T>
VTKM_EXEC void operator()(T inputIndex, T& outputIndex) const
{
outputIndex = inputIndex;
}
};
Tetrahedralize()
: OutCellsPerCell()
{
}
// Tetrahedralize explicit data set, save number of tetra cells per input
template <typename CellSetType>
vtkm::cont::CellSetSingleType<> Run(const CellSetType& cellSet)
{
TetrahedralizeExplicit worklet;
return worklet.Run(cellSet, this->OutCellsPerCell);
}
// Tetrahedralize structured data set, save number of tetra cells per input
vtkm::cont::CellSetSingleType<> Run(const vtkm::cont::CellSetStructured<3>& cellSet)
{
TetrahedralizeStructured worklet;
return worklet.Run(cellSet, this->OutCellsPerCell);
}
vtkm::cont::CellSetSingleType<> Run(const vtkm::cont::CellSetStructured<2>&)
{
throw vtkm::cont::ErrorBadType("CellSetStructured<2> can't be tetrahedralized");
}
// Using the saved input to output cells, expand cell data
template <typename T, typename StorageType>
vtkm::cont::ArrayHandle<T> ProcessCellField(
const vtkm::cont::ArrayHandle<T, StorageType>& input) const
{
vtkm::cont::ArrayHandle<T> output;
vtkm::worklet::DispatcherMapField<DistributeCellData> dispatcher(
DistributeCellData::MakeScatter(this->OutCellsPerCell));
dispatcher.Invoke(input, output);
return output;
}
private:
vtkm::cont::ArrayHandle<vtkm::IdComponent> OutCellsPerCell;
};
}
} // namespace vtkm::worklet
#endif // vtkm_m_worklet_Tetrahedralize_h