code: def __init__(self, cx=0, cy=0, r=1):
      self.cx = cx
      self.cy = cy
      self.r = r
  
file_path: vispy/vispy/util/svg/shapes.py
label_desc: Use image node_id 1 to create a new Circle object from inherited base classes: object with example: obj = Circle(cx, cy, r)