text: Title: Most plotter instance methods should be static methods
  Body: https://github.com/mithi/hexapod-robot-simulator/blob/5c1f8a187e7497a37e9b2b5d66ec2fe72b3cc61f/hexapod/plotter.py#L13
  
  ```
  def _draw_hexapod(self, fig, hexapod)
  def _draw_scene(self, fig, hexapod)
  def change_camera_view(self, fig, camera)
  ```
  
  See also: [Introduction to Static Methods for Dummies](https://realpython.com/instance-class-and-static-methods-demystified/)