Method RecursivelyProcessTree

Filters/HyperTree/vtkHyperTreeGridDepthLimiter.cxx:145–191

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void vtkHyperTreeGridDepthLimiter::RecursivelyProcessTree(
  vtkHyperTreeGridNonOrientedCursor* inCursor, vtkHyperTreeGridNonOrientedCursor* outCursor)
{
  // Retrieve global index of input cursor
  vtkIdType inId = inCursor->GetGlobalNodeIndex();

  // Increase index count on output: postfix is intended
  vtkIdType outId = this->CurrentId++;

  // Retrieve output tree and set global index of output cursor
  vtkHyperTree* outTree = outCursor->GetTree();
  outTree->SetGlobalIndexFromLocal(outCursor->GetVertexId(), outId);

  // Update material mask if relevant
  if (this->InMask)
  {
    this->OutMask->InsertValue(outId, this->InMask->GetValue(inId));
  }

  // Copy output cell data from that of input cell
  this->OutData->CopyData(this->InData, inId, outId);

  // Descend further into input trees only if cursor is not at leaf and depth not reached
  if (!inCursor->IsLeaf() && inCursor->GetLevel() < this->Depth)
  {
    // Cursor is not at leaf, subdivide output tree one level further
    outCursor->SubdivideLeaf();

    // If input cursor is neither at leaf nor at maximum depth, recurse to all children
    int numChildren = inCursor->GetNumberOfChildren();
    for (int child = 0; child < numChildren; ++child)
    {
      if (this->CheckAbort())
      {
        break;
      }
      inCursor->ToChild(child);
      // Descend into child in output grid as well
      outCursor->ToChild(child);
      // Recurse
      this->RecursivelyProcessTree(inCursor, outCursor);
      // Return to parent in output grid
      inCursor->ToParent();
      outCursor->ToParent();
    }
  }
}
VTK_ABI_NAMESPACE_END