Matplotlib是Python中的一个库,它是数字的-NumPy库的数学扩展。轴类包含大多数图形元素:Axis,Tick,Line2D,Text,Polygon等,并设置坐标系。 Axes实例通过callbacks属性支持回调。
matplotlib.axes.Axes.get_xticklabels()函数
matplotlib库的axiss模块中的Axes.get_xticklabels()函数用于返回x刻度标签作为Text实例列表。
用法:Axes.get_xticklabels(self, minor=False, which=None)
参数:此方法接受以下参数。
- minor:设置主要刻度标签还是设置次要刻度标签均使用此参数
- which:此参数用于选择要返回的刻度标签。
返回值:此方法返回Text实例列表。
以下示例说明了matplotlib.axes中的matplotlib.axes.Axes.get_xticklabels()函数:
范例1:
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
from matplotlib.patches import Polygon
def func(x):
return (x - 4) * (x - 6) * (x - 5) + 100
a, b = 2, 9 # integral limits
x = np.linspace(0, 10)
y = func(x)
fig, ax = plt.subplots()
ax.plot(x, y, "k", linewidth = 2)
ax.set_ylim(bottom = 0)
# Make the shaded region
ix = np.linspace(a, b)
iy = func(ix)
verts = [(a, 0), *zip(ix, iy), (b, 0)]
poly = Polygon(verts, facecolor ='green',
edgecolor ='0.5', alpha = 0.4)
ax.add_patch(poly)
ax.text(0.5 * (a + b), 30,
r"$\int_a ^ b f(x)\mathrm{d}x$",
horizontalalignment ='center',
fontsize = 20)
fig.text(0.9, 0.05, '$x$')
fig.text(0.1, 0.9, '$y$')
ax.spines['right'].set_visible(False)
ax.spines['top'].set_visible(False)
ax.set_xticks((a, b-a, b))
ax.set_xticklabels(('$a$', '$valx$', '$b$'))
w = ax.get_xticklabels()
strr = str(list(w))
ax.text(3.4, 200, "xticklabels values:",
fontweight ="bold")
ax.text(1, 185, strr, fontweight ="bold")
fig.suptitle('matplotlib.axes.Axes.get_xticklabels() \
function Example\n\n', fontweight ="bold")
fig.canvas.draw()
plt.show()
输出:
范例2:
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
# Fixing random state for reproducibility
np.random.seed(19680801)
x = np.linspace(0, 2 * np.pi, 100)
y = np.sin(x)
y2 = y + 0.2 * np.random.normal(size = x.shape)
fig, ax = plt.subplots()
ax.plot(x, y)
ax.plot(x, y2)
ax.set_xticks([0, np.pi, 2 * np.pi])
ax.set_xticklabels(['0', r'$pi$', r'2$pi$'])
ax.spines['left'].set_bounds(-1, 1)
ax.spines['right'].set_visible(False)
ax.spines['top'].set_visible(False)
w = ax.get_xticklabels()
strr = str(list(w))
ax.text(2.5, 0, "xticklabels values:",
fontweight ="bold")
ax.text(1, -0.2, strr, fontweight ="bold")
fig.suptitle('matplotlib.axes.Axes.get_xticklabels()\
function Example\n\n', fontweight ="bold")
fig.canvas.draw()
plt.show()
输出:
注:本文由纯净天空筛选整理自SHUBHAMSINGH10大神的英文原创作品 Matplotlib.axes.Axes.get_xticklabels() in Python。非经特殊声明,原始代码版权归原作者所有,本译文未经允许或授权,请勿转载或复制。