FindBoundaryVerticesIsNecessaryWorklet.h

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//  PURPOSE.  See the above copyright notice for more information.
//============================================================================
// Copyright (c) 2018, The Regents of the University of California, through
// Lawrence Berkeley National Laboratory (subject to receipt of any required approvals
// from the U.S. Dept. of Energy).  All rights reserved.
//
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//     Laboratory, U.S. Dept. of Energy nor the names of its contributors may be
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//=============================================================================
//
//  This code is an extension of the algorithm presented in the paper:
//  Parallel Peak Pruning for Scalable SMP Contour Tree Computation.
//  Hamish Carr, Gunther Weber, Christopher Sewell, and James Ahrens.
//  Proceedings of the IEEE Symposium on Large Data Analysis and Visualization
//  (LDAV), October 2016, Baltimore, Maryland.
//
//  The PPP2 algorithm and software were jointly developed by
//  Hamish Carr (University of Leeds), Gunther H. Weber (LBNL), and
//  Oliver Ruebel (LBNL)
//==============================================================================
 
#ifndef vtk_m_worklet_contourtree_distributed_bract_maker_find_boundary_vertices_is_necessary_h
#define vtk_m_worklet_contourtree_distributed_bract_maker_find_boundary_vertices_is_necessary_h
 
#include <vtkm/filter/scalar_topology/worklet/contourtree_augmented/Types.h>
#include <vtkm/worklet/WorkletMapField.h>
 
namespace vtkm
{
namespace worklet
{
namespace contourtree_distributed
{
namespace bract_maker
{
 
class FindBoundaryVerticesIsNecessaryWorklet : public vtkm::worklet::WorkletMapField
{
public:
  using ControlSignature = void(FieldIn bractVertexSuperset,                 // (input)
                                ExecObject meshBoundaryExec,                 // (input)
                                FieldOut necessaryBoundaryTreeVertexSuperset // (output)
  );
  using ExecutionSignature = _3(_1, _2);
  using InputDomain = _1;
 
  // Default Constructor
  VTKM_EXEC_CONT
  FindBoundaryVerticesIsNecessaryWorklet() {}
 
  template <typename MeshBoundaryExecType>
  VTKM_EXEC bool operator()(const vtkm::Id& node,
                            const MeshBoundaryExecType& meshBoundaryExec) const
  {
    return meshBoundaryExec.IsNecessary(node);
  }
 
}; // FindBoundaryVerticesIsNecessaryWorklet
 
 
} // namespace bract_maker
} // namespace contourtree_distributed
} // namespace worklet
} // namespace vtkm
 
#endif