LocalBestUpDownByVolumeInitSuperarcListWorklet.h

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#ifndef vtk_m_filter_scalar_topology_worklet_branch_decomposition_hierarchical_volumetric_branch_decomposer_LocalBestUpDownByVolumeInitSuperarcListWorklet_h
#define vtk_m_filter_scalar_topology_worklet_branch_decomposition_hierarchical_volumetric_branch_decomposer_LocalBestUpDownByVolumeInitSuperarcListWorklet_h
 
#include <vtkm/filter/scalar_topology/worklet/contourtree_augmented/Types.h>
#include <vtkm/worklet/WorkletMapField.h>
 
namespace vtkm
{
namespace worklet
{
namespace scalar_topology
{
namespace hierarchical_volumetric_branch_decomposer
{
 
class LocalBestUpDownByVolumeInitSuperarcListWorklet : public vtkm::worklet::WorkletMapField
{
public:
  using ControlSignature = void(FieldIn hierarchicalTreeSuperarcs, FieldOut superarcList);
  using ExecutionSignature = _2(InputIndex, _1);
  using InputDomain = _1;
 
  VTKM_EXEC vtkm::worklet::contourtree_augmented::EdgePair operator()(
    vtkm::Id superarc, // InputIndex in [0, hierarchicalTree.Superarcs.GetNumberOfValues() - 1]
    vtkm::Id hierarchicalTreeSuperarc // hierarchicalTree.Superarcs[superarc]
  ) const
  {
    using vtkm::worklet::contourtree_augmented::EdgePair;
    using vtkm::worklet::contourtree_augmented::IsAscending;
    using vtkm::worklet::contourtree_augmented::MaskedIndex;
 
    if (IsAscending(hierarchicalTreeSuperarc))
    {
      return EdgePair(superarc, MaskedIndex(hierarchicalTreeSuperarc));
    }
    else
    {
      return EdgePair(MaskedIndex(hierarchicalTreeSuperarc), superarc);
    }
 
    /* // This worklet implements the follwing loop
        for (vtkm::Id superarc = 0; superarc < nSuperarcs; superarc++)
        { // per superarc
        if (isAscending(hierarchicalTree.superarcs[superarc]))
          superarcList[superarc] = Edge(superarc, maskedIndex(hierarchicalTree.superarcs[superarc]));
        else
          superarcList[superarc] = Edge(maskedIndex(hierarchicalTree.superarcs[superarc]), superarc);
        } // per superarc
     */
  } // operator()()
 
}; // LocalBestUpDownByVolumeInitSuperarcListWorklet
 
} // namespace hierarchical_volumetric_branch_decomposer
} // namespace scalar_topology
} // namespace worklet
} // namespace vtkm
 
#endif