Method Initialize

Filters/ParallelFlowPaths/vtkPStreamTracer.cxx:433–470

  vtkTypeMacro(ProcessLocator, vtkObject);
  static ProcessLocator* New();
  void Initialize(vtkCompositeDataSet* data)
  {
    this->SetController(vtkMultiProcessController::GetGlobalController());
    this->Rank = this->Controller->GetLocalProcessId();
    this->NumProcs = this->Controller->GetNumberOfProcesses();
    this->InitBoundingBoxes(this->NumProcs);

    double bb[6];
    InitBB(bb);

    if (data)
    {
      vtkCompositeDataIterator* iter = data->NewIterator();
      iter->InitTraversal();
      while (!iter->IsDoneWithTraversal())
      {
        vtkDataSet* dataSet = vtkDataSet::SafeDownCast(iter->GetCurrentDataObject());
        AssertNe(dataSet, nullptr);
        UpdateBB(bb, dataSet->GetBounds());
        iter->GoToNextItem();
      }
      iter->Delete();
    }

    PRINT(bb[0] << " " << bb[1] << " " << bb[2] << " " << bb[3] << " " << bb[4] << " " << bb[5]);
    this->Controller->AllGather(bb, this->BoundingBoxes.data(), 6);

#ifdef DEBUGTRACE
    std::cout << "(" << Rank << ") BoundingBoxes: ";
    for (int i = 0; i < NumProcs; i++)
    {
      double* box = this->GetBoundingBox(i);
      std::cout << box[0] << " " << box[1] << " " << box[2] << " " << box[3] << " " << box[4] << " "
                << box[5] << ";  ";
    }
    std::cout << endl;
#endif
  }

  vtkSetObjectMacro(Controller, vtkMultiProcessController);