Matplotlib是Python中的一個庫,它是數字的-NumPy庫的數學擴展。
軸類包含大多數圖形元素:Axis,Tick,Line2D,Text,Polygon等,並設置坐標係。 Axes實例通過callbacks屬性支持回調。
matplotlib.axes.Axes.fill_between()函數
matplotlib庫的axiss模塊中的Axes.fill_between()函數用於填充兩條水平曲線之間的區域。
用法: Axes.fill_between(self, x, y1, y2=0, where=None, interpolate=False, step=None, *, data=None, **kwargs)
參數:此方法接受以下描述的參數:
- x:該參數包含用於定義曲線的數據點的水平坐標。
- y1:此參數包含用於定義第一條曲線的數據點的y坐標
- y2:該參數包含用於定義第二條曲線的數據點的y坐標。它是可選的,默認值為0。
- where:此參數是可選參數。它用於排除某些水平區域的填充。
- interpolate:此參數也是可選參數。它是錯誤欄行的線寬,默認值為NONE。
- step:此參數也是可選參數。它用於定義填充是否應為階躍函數。
返回值:這將返回包含繪製的多邊形的PolyCollection。
以下示例說明了matplotlib.axes中的matplotlib.axes.Axes.fill_between()函數:
示例1:
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(-5, 5, 0.01)
y1 = -3 * x*x + 10 * x + 10
y2 = 3 * x*x + x
fig, ax = plt.subplots()
ax.plot(x, y1, x, y2, color ='black')
ax.fill_between(x, y1, y2, where = y2 >y1,
facecolor ='green', alpha = 0.8)
ax.fill_between(x, y1, y2, where = y2 <= y1,
facecolor ='black', alpha = 0.8)
ax.set_title('matplotlib.axes.Axes.fill_between Example1')
plt.show()
輸出:
示例2:
# Implementation of matplotlib function
import numpy as np
import matplotlib.pyplot as plt
x = np.arange(0.0, 2, 0.01)
y1 = np.sin(2 * np.pi * x)
y2 = 0.8 * np.sin(4 * np.pi * x)
fig, (ax1, ax2, ax3, ax4) = plt.subplots(4, 1,
sharex = True,
figsize =(6, 6))
ax1.fill_between(x, y1, facecolor ='green')
ax1.set_title('Fill_Between y1 and 0')
ax2.fill_between(x, y1, 1, facecolor ='green')
ax2.set_title('Fill_Between y1 and 1')
ax3.fill_between(x, y1, y2, facecolor ='green')
ax3.set_title('Fill_Between y1 and y2')
ax3.set_xlabel('x')
fig.tight_layout()
ax4.fill_between(x, y1, y2, where = y2 <= y1,
facecolor ='green')
ax4.set_title('Fill_Between y1 and y2 with condition y2 <= y1 ' )
ax4.set_xlabel('x')
fig.tight_layout()
plt.show()
輸出:
相關用法
注:本文由純淨天空篩選整理自SHUBHAMSINGH10大神的英文原創作品 Matplotlib.axes.Axes.fill_between() in Python。非經特殊聲明,原始代碼版權歸原作者所有,本譯文未經允許或授權,請勿轉載或複製。