Rotating axes label text in 3D Matplotlib

To rotate axes label text in 3D matplotlib, we can use the set_xlabel(), set_ylabel(), and set_zlabel() methods with the rotation parameter to control the orientation of axis labels.

Basic Z-axis Label Rotation

The most common case is rotating the Z-axis label, which can overlap with tick labels in 3D plots ?

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

# Set figure size
plt.rcParams["figure.figsize"] = [8, 6]
plt.rcParams["figure.autolayout"] = True

# Create 3D plot
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')

# Add some sample data
x = np.random.randn(100)
y = np.random.randn(100)
z = np.random.randn(100)
ax.scatter(x, y, z)

# Rotate Z-axis label
ax.set_zlabel('Z-Axis Label', rotation=90)
ax.set_xlabel('X-Axis')
ax.set_ylabel('Y-Axis')

plt.show()

Rotating All Axis Labels

You can rotate labels for all three axes to improve readability ?

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

fig = plt.figure(figsize=(10, 8))
ax = fig.add_subplot(111, projection='3d')

# Create sample 3D surface
x = np.linspace(-5, 5, 50)
y = np.linspace(-5, 5, 50)
X, Y = np.meshgrid(x, y)
Z = np.sin(np.sqrt(X**2 + Y**2))

ax.plot_surface(X, Y, Z, alpha=0.7)

# Rotate all axis labels
ax.set_xlabel('X-Axis Label', rotation=45)
ax.set_ylabel('Y-Axis Label', rotation=-45)
ax.set_zlabel('Z-Axis Label', rotation=90)

plt.show()

Common Rotation Angles

Advanced Label Positioning

For better control, you can combine rotation with label padding ?

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

fig = plt.figure(figsize=(10, 8))
ax = fig.add_subplot(111, projection='3d')

# Simple 3D line plot
t = np.linspace(0, 2*np.pi, 100)
x = np.cos(t)
y = np.sin(t)
z = t
ax.plot(x, y, z)

# Set labels with rotation and padding
ax.set_xlabel('Cosine Values', rotation=0, labelpad=10)
ax.set_ylabel('Sine Values', rotation=0, labelpad=10)
ax.set_zlabel('Time Parameter', rotation=90, labelpad=15)

plt.show()

Conclusion

Use the rotation parameter in set_xlabel(), set_ylabel(), and set_zlabel() to rotate axis labels in 3D plots. Z-axis labels commonly use 90° rotation to avoid overlapping with tick labels.