def setup_pipeline(self):
        # Setup the glyphs.
        self.glyph = glyph.Glyph(glyph_type='tensor')
        self.glyph.glyph_source.glyph_source = self.glyph.glyph_source.glyph_list[4]
        self.actor = Actor()
Override this method so that it *creates* the tvtk
dataset/ETHPy150Open enthought/mayavi/mayavi/modules/tensor_glyph.py/TensorGlyph.setup_pipeline