class_docstr: A cross-hair cursor using blitting for faster redraw.
class_docstr_tok: ["A","cross-hair","cursor","using","blitting","for","faster","redraw","."]
code: def on_draw(self, event):
      self.create_new_background()
  
file_path: matplotlib/galleries/examples/event_handling/cursor_demo.py
imports: import matplotlib.pyplot
  import numpy
  from matplotlib.backend_bases import MouseEvent
label_desc: Use image node_id 2 for calling the BlittedCursor obj's underlying member method code with example usage: obj.on_draw(event) without return types