582             y_data = items[1].GetData(start_tick, end_tick)

   582             y_data = items[1].GetData(start_tick, end_tick)

   583 

   583 

   584             # Search for the nearest point from mouse position

   584             # Search for the nearest point from mouse position

   585             if len(x_data) > 0 and len(y_data) > 0:

   585             if len(x_data) > 0 and len(y_data) > 0:

   586                 length = min(len(x_data), len(y_data))

   586                 length = min(len(x_data), len(y_data))

   588                                (y_data[:length, 1]-event.ydata) ** 2)

   588                                (y_data[:length, 1]-event.ydata) ** 2)

   589 

   589 

   590                 # Set cursor tick to the tick of this point

   590                 # Set cursor tick to the tick of this point

   591                 cursor_tick = x_data[numpy.argmin(d), 0]

   591                 cursor_tick = x_data[numpy.argmin(d), 0]

   592 

   592