text: """
  =================
  Simple Annotate01
  =================
  
  """
  
  import matplotlib.pyplot as plt
  import matplotlib.patches as mpatches
  
  
  fig, axs = plt.subplots(2, 4)
  x1, y1 = 0.3, 0.3
  x2, y2 = 0.7, 0.7
  
  ax = axs.flat[0]
  ax.plot([x1, x2], [y1, y2], "o")
  ax.annotate("",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              arrowprops=dict(arrowstyle="->"))
  ax.text(.05, .95, "A $->$ B", transform=ax.transAxes, ha="left", va="top")
  
  ax = axs.flat[2]
  ax.plot([x1, x2], [y1, y2], "o")
  ax.annotate("",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3",
                              shrinkB=5)
              )
  ax.text(.05, .95, "shrinkB=5", transform=ax.transAxes, ha="left", va="top")
  
  ax = axs.flat[3]
  ax.plot([x1, x2], [y1, y2], "o")
  ax.annotate("",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3"))
  ax.text(.05, .95, "connectionstyle=arc3", transform=ax.transAxes, ha="left", va="top")
  
  ax = axs.flat[4]
  ax.plot([x1, x2], [y1, y2], "o")
  el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
  ax.add_artist(el)
  ax.annotate("",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2")
              )
  
  ax = axs.flat[5]
  ax.plot([x1, x2], [y1, y2], "o")
  el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
  ax.add_artist(el)
  ax.annotate("",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2",
                              patchB=el)
              )
  ax.text(.05, .95, "patchB", transform=ax.transAxes, ha="left", va="top")
  
  ax = axs.flat[6]
  ax.plot([x1], [y1], "o")
  ax.annotate("Test",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              ha="center", va="center",
              bbox=dict(boxstyle="round", fc="w"),
              arrowprops=dict(arrowstyle="->")
              )
  ax.text(.05, .95, "annotate", transform=ax.transAxes, ha="left", va="top")
  
  ax = axs.flat[7]
  ax.plot([x1], [y1], "o")
  ax.annotate("Test",
              xy=(x1, y1), xycoords='data',
              xytext=(x2, y2), textcoords='data',
              ha="center", va="center",
              bbox=dict(boxstyle="round", fc="w", ),
              arrowprops=dict(arrowstyle="->", relpos=(0., 0.))
              )
  ax.text(.05, .95, "relpos=(0, 0)", transform=ax.transAxes, ha="left", va="top")
  
  for ax in axs.flat:
      ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
  
  plt.show()
  