matplotlib 3d轴刻度，标签和LaTeX [英] matplotlib 3d axes ticks, labels, and LaTeX

问题描述

我正在运行此示例脚本，并进行了以下修改:

I am running this sample script, with the following modifications:

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

mpl.rcParams['legend.fontsize'] = 10

fig = plt.figure()
ax = fig.gca(projection='3d')
theta = np.linspace(-4 * np.pi, 4 * np.pi, 100)
z = np.linspace(-2, 2, 100)
r = z**2 + 1
x = r * np.sin(theta)
y = r * np.cos(theta)
ax.plot(x, y, z, label='parametric curve')
ax.legend()

ax.set_xlabel('$X$', fontsize=20, rotation=150)
ax.set_ylabel('$Y$')
ax.set_zlabel(r'$\gamma$', fontsize=30, rotation=60)
ax.yaxis._axinfo['label']['space_factor'] = 3.0

plt.show()

1. 如何将轴刻度调整到所选的刻度?即，如何将z轴仅标记为2、0和-2以及所需的字体大小?我知道如何用2D而不是3D来做到这一点.

1. How do I adjust the axis ticks to that of my choosing? I.e., how would I get the z-axis to only label 2, 0, and -2, and in the font size that I want? I know how to do this in 2D but not 3D.

上面的脚本产生以下内容:

The script above produces the following:

为什么我要对此脚本处理x轴标签而不是z轴标签(gamma)失真?这根本不符合逻辑.我需要用希腊字母标记的轴.我该如何解决?

Why is the x-axis label distorted, which I wanted to do with this script, but not the z-axis label (gamma)? This does not make sense. I need this axis labeled in the Greek letter. How do I fix this?

推荐答案

如何将轴刻度调整为所选的刻度?即如何 我将z轴仅标记为2、0和-2，并且将字体大小设置为 我想?我知道如何用2D而不是3D来做到这一点.

How do I adjust the axis ticks to that of my choosing? I.e., how would I get the z-axis to only label 2, 0, and -2, and in the font size that I want? I know how to do this in 2D but not 3D.

您必须更改zticks的属性.

为什么x轴标签变形了，我想这样做 脚本，而不是z轴标签(gamma)?这根本不符合逻辑.一世 需要用希腊字母标记的轴.我该如何解决?

Why is the x-axis label distorted, which I wanted to do with this script, but not the z-axis label (gamma)? This does not make sense. I need this axis labeled in the Greek letter. How do I fix this?

您必须禁用z轴标签的自动旋转.看下面的代码:

You have to disable autorotation for z axis labels. Look at the code below:

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

mpl.rcParams['legend.fontsize'] = 10

fig = plt.figure()
ax = fig.gca(projection='3d')
theta = np.linspace(-4 * np.pi, 4 * np.pi, 100)
z = np.linspace(-2, 2, 100)
r = z**2 + 1
x = r * np.sin(theta)
y = r * np.cos(theta)
ax.plot(x, y, z, label='parametric curve')
ax.legend()

ax.set_xlabel('$X$', fontsize=20)
ax.set_ylabel('$Y$')
ax.yaxis._axinfo['label']['space_factor'] = 3.0
# set z ticks and labels
ax.set_zticks([-2, 0, 2])
# change fontsize
for t in ax.zaxis.get_major_ticks(): t.label.set_fontsize(10)
# disable auto rotation
ax.zaxis.set_rotate_label(False) 
ax.set_zlabel('$\gamma$', fontsize=30, rotation = 0)
plt.show()

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