📜  Python中的 matplotlib.pyplot.viridis()

📅  最后修改于: 2022-05-13 01:55:00.973000             🧑  作者: Mango

Python中的 matplotlib.pyplot.viridis()

Matplotlib是Python中的一个库,它是 NumPy 库的数值数学扩展。 PyplotMatplotlib模块的基于状态的接口,它提供了一个类似 MATLAB 的接口。

matplotlib.pyplot.viridis()函数:

matplotlib 库的 pyplot 模块中的viridis()函数用于将颜色图设置为“viridis”。

下面的示例说明了 matplotlib.pyplot 中的 matplotlib.pyplot.viridis()函数:

示例 #1:

matplotlib.pyplot.viridis()

输出:

示例 #2:

# Implementation of matplotlib function
import matplotlib.pyplot as plt
import matplotlib.tri as tri
import numpy as np
     
ang = 32
rad = 10
radm = 0.35
radii = np.linspace(radm, 0.95, rad)
     
angles = np.linspace(0, 1.4 * np.pi, ang)
angles = np.repeat(angles[..., np.newaxis], rad, axis = 1)
angles[:, 1::2] += np.pi / ang
     
x = (radii * np.cos(angles)).flatten()
y = (radii * np.sin(angles)).flatten()
z = (np.sin(4 * radii) * np.cos(4 * angles)).flatten()
     
triang = tri.Triangulation(x, y)
triang.set_mask(np.hypot(x[triang.triangles].mean(axis = 1),
                         y[triang.triangles].mean(axis = 1))
                         < radm)
     
tpc = plt.tripcolor(triang, z, shading ='flat')
plt.colorbar(tpc)
plt.viridis()
plt.title('matplotlib.pyplot.viridis() function Example', 
                                      fontweight ="bold")
plt.show()

输出: