Python 中的 matplotlib . axis . axis . get _ tick locs()函数
原文:https://www . geeksforgeeks . org/matplotlib-axis-axis-get _ tick locs-python 中的函数/
Matplotlib 是 Python 中的一个库，是 NumPy 库的数值-数学扩展。这是一个神奇的 Python 可视化库，用于 2D 数组图，并用于处理更广泛的 SciPy 堆栈。
matplotlib . axis . axis . get _ ticlocs()函数
matplotlib 库的 Axis 模块中的 Axis.get_ticklocs()函数用于获取数据坐标中的刻度位置数组。
语法: Axis.get_ticklocs(self，minor=False)
参数:该方法接受以下参数。
- 次要:该参数包含布尔值。如果为真，返回次要 tick loc，否则返回主要 tick loc。
返回值:此方法返回数据坐标中的刻度位置数组。
以下示例说明 matplotlib . axis . axis . get _ tick locs()函数在 matplotlib.axis: 示例 1:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
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"$\int_a ^ b f(x)\mathrm{d}x{content}quot;,
horizontalalignment ='center',
fontsize = 20)
fig.text(0.9, 0.05, '$x{content}apos;)
fig.text(0.1, 0.9, '$y{content}apos;)
ax.spines['right'].set_visible(False)
ax.spines['top'].set_visible(False)
ax.set_xticks((a, b-a, b))
ax.set_xticklabels(('$a{content}apos;, '$valx{content}apos;, '$b{content}apos;))
fig.suptitle('Matplotlib.axis.Axis.get_ticklocs()\n\
Function Example', fontweight ="bold")
ax.grid()
print("Value of get_ticklocs() :")
for i in ax.xaxis.get_ticklocs():
print(i)
plt.show()
输出:
Value of get_ticklocs() :
2
7
9
例 2:
Python 3
# Implementation of matplotlib function
from matplotlib.axis import Axis
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'$\pi{content}apos;, r'2$\pi{content}apos;])
ax.spines['left'].set_bounds(-1, 1)
ax.spines['right'].set_visible(False)
ax.spines['top'].set_visible(False)
print("Value of get_ticklocs() :")
for i in ax.xaxis.get_ticklocs():
print(i)
fig.suptitle('Matplotlib.axis.Axis.get_ticklocs()\n\
Function Example', fontweight ="bold")
ax.grid()
plt.show()
输出:
Value of get_ticklocs() :
0.0
3.141592653589793
6.283185307179586
版权属于：月萌API www.moonapi.com，转载请注明出处
