Method SetInputData

Filters/Extraction/vtkExtractVectorComponents.cxx:65–111

------------------------------------------------------------------------------ Specify the input data or filter.

//------------------------------------------------------------------------------
// Specify the input data or filter.
void vtkExtractVectorComponents::SetInputData(vtkDataSet* input)
{
  if (this->GetNumberOfInputConnections(0) > 0 && this->GetInput(0) == input)
  {
    return;
  }

  this->Superclass::SetInputData(0, input);

  if (input == nullptr)
  {
    return;
  }

  vtkDataSet* output;
  if (!this->OutputsInitialized)
  {
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(0, output);
    output->Delete();
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(1, output);
    output->Delete();
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(2, output);
    output->Delete();
    this->OutputsInitialized = 1;
    return;
  }

  // since the input has changed we might need to create a new output
  // It seems that output 0 is the correct type as a result of the call to
  // the superclass's SetInput.  Check the type of output 1 instead.
  if (strcmp(this->GetOutput(1)->GetClassName(), input->GetClassName()) != 0)
  {
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(0, output);
    output->Delete();
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(1, output);
    output->Delete();
    output = input->NewInstance();
    this->GetExecutive()->SetOutputData(2, output);
    output->Delete();
    vtkWarningMacro(<< " a new output had to be created since the input type changed.");
  }
}

//------------------------------------------------------------------------------
namespace