简单的Annotate01

简单的Annotate01示例

  1. import matplotlib.pyplot as plt
  2. import matplotlib.patches as mpatches
  5. fig, axs = plt.subplots(2, 4)
  6. x1, y1 = 0.3, 0.3
  7. x2, y2 = 0.7, 0.7
  9. ax = axs.flat[0]
  10. ax.plot([x1, x2], [y1, y2], "o")
  11. ax.annotate("",
  12.             xy=(x1, y1), xycoords='data',
  13.             xytext=(x2, y2), textcoords='data',
  14.             arrowprops=dict(arrowstyle="->"))
  15. ax.text(.05, .95, "A $->$ B", transform=ax.transAxes, ha="left", va="top")
  17. ax = axs.flat[2]
  18. ax.plot([x1, x2], [y1, y2], "o")
  19. ax.annotate("",
  20.             xy=(x1, y1), xycoords='data',
  21.             xytext=(x2, y2), textcoords='data',
  22.             arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3",
  23.                             shrinkB=5)
  24.             )
  25. ax.text(.05, .95, "shrinkB=5", transform=ax.transAxes, ha="left", va="top")
  27. ax = axs.flat[3]
  28. ax.plot([x1, x2], [y1, y2], "o")
  29. ax.annotate("",
  30.             xy=(x1, y1), xycoords='data',
  31.             xytext=(x2, y2), textcoords='data',
  32.             arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.3"))
  33. ax.text(.05, .95, "connectionstyle=arc3", transform=ax.transAxes, ha="left", va="top")
  35. ax = axs.flat[4]
  36. ax.plot([x1, x2], [y1, y2], "o")
  37. el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
  38. ax.add_artist(el)
  39. ax.annotate("",
  40.             xy=(x1, y1), xycoords='data',
  41.             xytext=(x2, y2), textcoords='data',
  42.             arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2")
  43.             )
  45. ax = axs.flat[5]
  46. ax.plot([x1, x2], [y1, y2], "o")
  47. el = mpatches.Ellipse((x1, y1), 0.3, 0.4, angle=30, alpha=0.5)
  48. ax.add_artist(el)
  49. ax.annotate("",
  50.             xy=(x1, y1), xycoords='data',
  51.             xytext=(x2, y2), textcoords='data',
  52.             arrowprops=dict(arrowstyle="->", connectionstyle="arc3,rad=0.2",
  53.                             patchB=el)
  54.             )
  55. ax.text(.05, .95, "patchB", transform=ax.transAxes, ha="left", va="top")
  57. ax = axs.flat[6]
  58. ax.plot([x1], [y1], "o")
  59. ax.annotate("Test",
  60.             xy=(x1, y1), xycoords='data',
  61.             xytext=(x2, y2), textcoords='data',
  62.             ha="center", va="center",
  63.             bbox=dict(boxstyle="round", fc="w"),
  64.             arrowprops=dict(arrowstyle="->")
  65.             )
  66. ax.text(.05, .95, "annotate", transform=ax.transAxes, ha="left", va="top")
  68. ax = axs.flat[7]
  69. ax.plot([x1], [y1], "o")
  70. ax.annotate("Test",
  71.             xy=(x1, y1), xycoords='data',
  72.             xytext=(x2, y2), textcoords='data',
  73.             ha="center", va="center",
  74.             bbox=dict(boxstyle="round", fc="w", ),
  75.             arrowprops=dict(arrowstyle="->", relpos=(0., 0.))
  76.             )
  77. ax.text(.05, .95, "relpos=(0,0)", transform=ax.transAxes, ha="left", va="top")
  79. for ax in axs.flat:
  80.     ax.set(xlim=(0, 1), ylim=(0, 1), xticks=[], yticks=[], aspect=1)
  82. plt.show()

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