def update(self):
        # This tells the VTK pipeline that the data has changed.  This
        # will fire the data_changed event automatically.
        self.data.modified()
        self._assign_attribute.update()

    ######################################################################
    # Non-public interface
    ######################################################################
Invoke this to flush data changes downstream.  This is
dataset/ETHPy150Open enthought/mayavi/mayavi/sources/vtk_data_source.py/VTKDataSource.update