Method InvalidateGeometry

Common/DataModel/vtkKdTree.cxx:2713–2722

------------------------------------------------------------------------------ Code to save state/time of last k-d tree build, and to determine if a data set's geometry has changed since the last build.

// last build.
//
void vtkKdTree::InvalidateGeometry()
{
  // Remove observers to data sets.
  for (int i = 0; i < this->LastNumDataSets; i++)
  {
    this->LastInputDataSets[i]->RemoveObserver(this->LastDataSetObserverTags[i]);
  }

  this->LastNumDataSets = 0;
}

//------------------------------------------------------------------------------
void vtkKdTree::ClearLastBuildCache()