'Override to draw only the outer ellipse,
not the major and minor axes in the middle.
FIXME: we may want to add a general method to give the user control
over which spines are drawn.'

def draw(self, renderer):

    axis = 'c'
    (x, y) = (self[axis].pixel[:, 0], self[axis].pixel[:, 1])
    line = Line2D(x, y, linewidth=self._linewidth, color=self._color, zorder=1000)
    line.draw(renderer)
