Method RemoveInputConnection

Common/ExecutionModel/vtkAlgorithm.cxx:1339–1387

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//------------------------------------------------------------------------------
void vtkAlgorithm::RemoveInputConnection(int port, int idx)
{
  if (!this->InputPortIndexInRange(port, "disconnect"))
  {
    return;
  }

  vtkAlgorithmOutput* input = this->GetInputConnection(port, idx);
  if (input)
  {
    // We need to check if this connection exists multiple times.
    // If it does, we can't remove this from the consumers list.
    int numConnections = 0;
    int numInputConnections = this->GetNumberOfInputConnections(0);
    for (int i = 0; i < numInputConnections; i++)
    {
      if (input == this->GetInputConnection(port, i))
      {
        numConnections++;
      }
    }

    vtkExecutive* consumer = this->GetExecutive();
    int consumerPort = port;

    // Get the vector of connected input information objects.
    vtkInformationVector* inputs = consumer->GetInputInformation(consumerPort);

    // Get the producer/consumer pair for the connection.
    vtkExecutive* producer = input->GetProducer()->GetExecutive();
    int producerPort = input->GetIndex();

    // Get the information object from the producer of the old input.
    vtkInformation* oldInfo = producer->GetOutputInformation(producerPort);

    // Only connected once, remove this from inputs consumer list.
    if (numConnections == 1)
    {
      // Remove this consumer from the old input's list of consumers.
      vtkExecutive::CONSUMERS()->Remove(oldInfo, consumer, consumerPort);
    }

    // Remove the information object from the list of inputs.
    inputs->Remove(idx);

    // This algorithm has been modified.
    this->Modified();
  }
}

//------------------------------------------------------------------------------
void vtkAlgorithm::RemoveInputConnection(int port, vtkAlgorithmOutput* input)