Method InitializeForReader

Common/DataModel/vtkHyperTree.cxx:239–314

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//---------------------------------------------------------------------------
void vtkHyperTree::InitializeForReader(vtkIdType numberOfLevels, vtkIdType nbVertices,
  vtkIdType nbVerticesOfLastdepth, vtkBitArray* isParent, vtkBitArray* isMasked,
  vtkBitArray* outIsMasked)
{
  if (isParent == nullptr)
  {
    this->Datas->ParentToElderChild.resize(1);
    this->Datas->ParentToElderChild[0] = std::numeric_limits<unsigned int>::max();
    if (isMasked)
    {
      vtkIdType nbIsMasked = isMasked->GetNumberOfTuples();
      if (nbIsMasked)
      {
        assert(isMasked->GetNumberOfComponents() == 1);
        outIsMasked->InsertValue(this->GetGlobalIndexFromLocal(0), isMasked->GetValue(0));
      }
    }
    return;
  }

  vtkIdType nbIsParent = isParent->GetNumberOfTuples();
  assert(isParent->GetNumberOfComponents() == 1);

  vtkIdType firstOffsetLastdepth = nbVertices - nbVerticesOfLastdepth;
  firstOffsetLastdepth = std::min(nbIsParent, firstOffsetLastdepth);
  this->Datas->ParentToElderChild.resize(firstOffsetLastdepth);

  vtkIdType nbCoarses = isParent->GetValue(0);
  if (nbCoarses)
  {
    vtkIdType off = 1;
    this->Datas->ParentToElderChild.resize(
      std::max(static_cast<vtkIdType>(1), firstOffsetLastdepth));
    this->Datas->ParentToElderChild[0] = off;
    for (vtkIdType i = 1; i < firstOffsetLastdepth; ++i)
    {
      if (isParent->GetValue(i))
      {
        off += this->NumberOfChildren;
        this->Datas->ParentToElderChild[i] = off;
        ++nbCoarses;
      }
      else
      {
        this->Datas->ParentToElderChild[i] = std::numeric_limits<unsigned int>::max();
      }
    }
  }
  else
  {
    this->Datas->ParentToElderChild.resize(1);
    this->Datas->ParentToElderChild[0] = std::numeric_limits<unsigned int>::max();
  }

  if (isMasked)
  {
    vtkIdType nbIsMasked = isMasked->GetNumberOfTuples();
    assert(isMasked->GetNumberOfComponents() == 1);