Method Modified

Common/Transforms/vtkAbstractTransform.cxx:382–388

------------------------------------------------------------------------------ During an update, we don't want to generate ModifiedEvent because code observing the event might modify the transform while the transform's update is in progress (leading to corrupt state, deadlocks, infinite recursion, or other nastiness).

// update is in progress (leading to corrupt state, deadlocks, infinite
// recursion, or other nastiness).
void vtkAbstractTransform::Modified()
{
  if (!this->Internals->InUpdate)
  {
    this->Superclass::Modified();
  }
}

//------------------------------------------------------------------------------
// We need to handle the circular reference between a transform and its