Method Execute

Filters/Parallel/Testing/Cxx/TransmitImageDataRenderPass.cxx:76–224

}

void MyProcess::Execute()
{
  this->ReturnValue = 1;
  int numProcs = this->Controller->GetNumberOfProcesses();
  int me = this->Controller->GetLocalProcessId();

  int i, go;

  vtkSmartPointer<vtkCompositeRenderManager> prm =
    vtkSmartPointer<vtkCompositeRenderManager>::New();

  // READER
  vtkSmartPointer<vtkStructuredPoints> sp;
  if (me == 0)
  {
    vtkSmartPointer<vtkStructuredPointsReader> spr =
      vtkSmartPointer<vtkStructuredPointsReader>::New();
    char* fname = vtkTestUtilities::ExpandDataFileName(this->Argc, this->Argv, "Data/ironProt.vtk");
    spr->SetFileName(fname);
    sp = spr->GetOutput();
    spr->Update();
    delete[] fname;

    go = 1;
    if ((sp == nullptr) || (sp->GetNumberOfCells() == 0))
    {
      if (sp)
      {
        std::cout << "Failure: input file has no cells" << std::endl;
      }
      go = 0;
    }
  }
  else
  {
    sp = vtkSmartPointer<vtkStructuredPoints>::New();
  }

  vtkMPICommunicator* comm = vtkMPICommunicator::SafeDownCast(this->Controller->GetCommunicator());
  comm->Broadcast(&go, 1, 0);
  if (!go)
  {
    return;
  }

  // FILTER WE ARE TRYING TO TEST
  vtkSmartPointer<vtkTransmitImageDataPiece> pass =
    vtkSmartPointer<vtkTransmitImageDataPiece>::New();
  pass->SetController(this->Controller);
  pass->SetInputData(sp);

  // FILTERING
  vtkSmartPointer<vtkContourFilter> cf = vtkSmartPointer<vtkContourFilter>::New();
  cf->SetInputConnection(pass->GetOutputPort());
  cf->SetNumberOfContours(1);
  cf->SetValue(0, 10.0);
  // I am not sure that this is needed.
  //(cf->GetInput())->RequestExactExtentOn();