class_docstr: Mouse editing extension to the Line visual.
  This class adds mouse picking for line points, mouse_move handling for
  dragging existing points, and
  adding new points when clicking into empty space.
class_docstr_tok: ["Mouse","editing","extension","to","the","Line","visual",".","This","class","adds","mouse","picking","for","line","points",",","mouse_move","handling","for","dragging","existing","points",",","and","adding","new","points","when","clicking","into","empty","space","."]
code: def on_mouse_release(self, event):
      self.print_mouse_event(event, "Mouse release")
      self.selected_point = None
      self.update_markers()
  
file_path: vispy/examples/basics/visuals/line_draw.py
imports: import numpy
  from vispy import app, scene
label_desc: Use image node_id 7 for calling the EditLineVisual obj's underlying member method code with example usage: obj.on_mouse_release(event) without return types