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Python Matplotlib.axes.Axes.get_xticklines()用法及代码示例


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_xticklines()函数

matplotlib库的axiss模块中的Axes.get_xticklines()函数用于返回x刻度线作为Line2D实例的列表。

用法: Axes.get_xticklines(self)


参数:此方法不接受任何参数。

返回值:此方法返回x刻度线作为Line2D实例的列表。

以下示例说明了matplotlib.axes中的matplotlib.axes.Axes.get_xticklines()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_xticklines() 
ax.text(3, 200, "xticklines values:",  
       fontweight ="bold") 
xx = 200
for i in w:
    ax.text(4, xx-15, str(i), fontweight ="bold") 
    xx-= 15
    
fig.suptitle('matplotlib.axes.Axes.get_xticklines()\ 
 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_xticklines() 
ax.text(2, 0.8, "xticklines values:",  
        fontweight ="bold") 
xx = 0.8
for i in w:
    ax.text(2.3, xx-0.2, str(i), fontweight ="bold") 
    xx-= 0.2
    
fig.suptitle('matplotlib.axes.Axes.get_xticklines() \ 
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_xticklines() 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。