Method GetOutputInformation

Common/ExecutionModel/vtkExecutive.cxx:209–237

------------------------------------------------------------------------------

//------------------------------------------------------------------------------
vtkInformationVector* vtkExecutive::GetOutputInformation()
{
  // Use the shared output information vector if any is set.
  if (this->SharedOutputInformation)
  {
    return this->SharedOutputInformation;
  }

  // Use this executive's output information vector.
  if (!this->Algorithm)
  {
    return nullptr;
  }
  // Set the length of the vector to match the number of ports.
  int oldNumberOfPorts = this->OutputInformation->GetNumberOfInformationObjects();
  this->OutputInformation->SetNumberOfInformationObjects(this->GetNumberOfOutputPorts());

  // For any new information objects, set the executive pointer and
  // port number on the information object to tell it what produces
  // it.
  int nop = this->Algorithm->GetNumberOfOutputPorts();
  for (int i = oldNumberOfPorts; i < nop; ++i)
  {
    vtkInformation* info = this->OutputInformation->GetInformationObject(i);
    vtkExecutive::PRODUCER()->Set(info, this, i);
  }

  return this->OutputInformation;
}

//------------------------------------------------------------------------------
vtkInformation* vtkExecutive::GetOutputInformation(int port)