class_docstr: Display an embedding gui for interaction and selection.
  In addition show the number of landmarks selected and give the
  user the chance to start a new analysis
class_docstr_tok: ["Display","an","embedding","gui","for","interaction","and","selection",".","In","addition","show","the","number","of","landmarks","selected","and","give","the","user","the","chance","to","start","a","new","analysis"]
docstr: Used in the embedding iteration phase when the xys are
  being calculated
docstr_tok: ["Used","in","the","embedding","iteration","phase","when","the","xys","are","being","calculated"]
code: def update_plot(self, embedding):
      """Used in the embedding iteration phase when the xys are
      being calculated"""
      self.plot_widget.update_plot(embedding)
  
imports: import io
  from enum import Enum
  import numpy
  import matplotlib.pyplot
  import matplotlib.style
  from matplotlib.widgets import RectangleSelector, LassoSelector, EllipseSelector, PolygonSelector
  from matplotlib.path import Path
  from matplotlib.backends.backend_qt5agg import FigureCanvas
  from matplotlib.figure import Figure
  from PyQt5 import QtWidgets, QtCore
  from cursors import DrawingCursors, DrawingShape, DrawingMode
label_desc: Use image node_id 9 for calling the EmbeddingViewer obj's underlying member method code with example usage: obj.update_plot(embedding) without return types