Method GetTransform

Common/Transforms/vtkAbstractTransform.cxx:692–718

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//------------------------------------------------------------------------------
vtkAbstractTransform* vtkTransformConcatenation::GetTransform(int i)
{
  // we walk through the list in reverse order if InverseFlag is set
  if (this->InverseFlag)
  {
    int j = this->NumberOfTransforms - i - 1;
    vtkTransformPair* tuple = &this->TransformList[j];
    // if inverse is nullptr, then get it from the forward transform
    if (tuple->InverseTransform == nullptr)
    {
      tuple->InverseTransform = tuple->ForwardTransform->GetInverse();
      tuple->InverseTransform->Register(nullptr);
    }
    return tuple->InverseTransform;
  }
  else
  {
    vtkTransformPair* tuple = &this->TransformList[i];
    // if transform is nullptr, then get it from its inverse
    if (tuple->ForwardTransform == nullptr)
    {
      tuple->ForwardTransform = tuple->InverseTransform->GetInverse();
      tuple->ForwardTransform->Register(nullptr);
    }
    return tuple->ForwardTransform;
  }
}

//------------------------------------------------------------------------------
vtkMTimeType vtkTransformConcatenation::GetMaxMTime()