code: def resize_drawing_canvas(ax, scale=1.):
      
      ax.set_ylim((-0.10 * scale, .90 * scale))
      ax.set_xlim((-0.05 * scale, 1.05 * scale))
docs: Makes sure the drawing surface is large enough to display projected
      content.
  
      Parameters
      ----------
      ax: Matplotlib AxesSubplot, None
          The subplot to draw on.
      scale: float, 1.0
          Simplex scale size.