def add_widgets(self, widgets, enabled=True):
        if not hasattr(widgets, '__iter__'):
            widgets = [widgets]
        iren = self._interactor
        for widget in widgets:
            widget.interactor = iren
            widget.enabled = enabled
        self.render()
Adds a single 3D widget or a sequence of widgets to the renderer.
dataset/ETHPy150Open enthought/mayavi/tvtk/pyface/tvtk_scene.py/TVTKScene.add_widgets