from mpl_toolkits.mplot3d import Axes3D
import matplotlib.pyplot as plt
import numpy as np

# This example demonstrates mplot3d's offset text display.
# As one rotates the 3D figure, the offsets should remain oriented
# same way as the axis label, and should also be located "away"
# from the center of the plot.
#
# This demo triggers the display of the offset text for the x and
# y axis by adding 1e5 to X and Y. Anything less would not
# automatically trigger it.

fig = plt.figure()
ax = fig.gca(projection='3d')
X, Y = np.mgrid[0:6*np.pi:0.25, 0:4*np.pi:0.25]
Z = np.sqrt(np.abs(np.cos(X) + np.cos(Y)))

surf = ax.plot_surface(X + 1e5, Y + 1e5, Z, cmap='autumn', cstride=2, rstride=2)
ax.set_xlabel("X-Label")
ax.set_ylabel("Y-Label")
ax.set_zlabel("Z-Label")
ax.set_zlim(0, 2)

plt.show() 

　

Traceback (most recent call last):
  File "M:\______\offset_demo.py", line 15, in 
    ax = fig.gca(projection='3d')
         ^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: FigureBase.gca() got an unexpected keyword argument 'projection' 

Traceback (most recent call last):
  File "E:\______\offset_demo.py", line 15, in 
    ax = fig.gca(projection='3d')
         ^^^^^^^^^^^^^^^^^^^^^^^^
TypeError: FigureBase.gca() got an unexpected keyword argument 'projection' 

"""
=========================
Automatic text offsetting
=========================

This example demonstrates mplot3d's offset text display.
As one rotates the 3D figure, the offsets should remain oriented the
same way as the axis label, and should also be located "away"
from the center of the plot.

This demo triggers the display of the offset text for the x- and
y-axis by adding 1e5 to X and Y. Anything less would not
automatically trigger it.
"""

import matplotlib.pyplot as plt
import numpy as np

ax = plt.figure().add_subplot(projection='3d')

X, Y = np.mgrid[0:6*np.pi:0.25, 0:4*np.pi:0.25]
Z = np.sqrt(np.abs(np.cos(X) + np.cos(Y)))

ax.plot_surface(X + 1e5, Y + 1e5, Z, cmap='autumn', cstride=2, rstride=2)

ax.set_xlabel("X label")
ax.set_ylabel("Y label")
ax.set_zlabel("Z label")
ax.set_zlim(0, 2)

plt.show() 

　Python 3.11.6 (matplotlib 3.7.1) 及び Python 3.12.0 (matplotlib 3.8.1) 共に、正常実行です。

　

• 2023/11/19 Ver=1.04 Python 3.12.0 (matplotlib 3.8.1)で確認
• 2023/11/19 Ver=1.04 Python 3.11.6 (matplotlib 3.7.1)で確認
• 2023/03/31 Ver=1.03 Python 3.11.2 で確認
• 2020/10/30 Ver=1.01 Python 3.7.8 で確認
• 2018/11/28 Ver=1.01 初版リリース

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