matplotlib.pyplot.sci()函数
Matplotlib是Python中的一个库,它是NumPy库的数值-数学扩展。Pyplot是一个基于状态的Matplotlib模块接口,该模块提供了一个类似matlab的接口。Pyplot中可以使用的绘图有直线图、轮廓图、直方图、散点图、三维图等。
matplotlib.pyplot.sci()函数
使用matplotlib库pyplot模块中的sci()函数设置当前图像。
语法:matplotlib.pyplot.sci (im)
参数:
- im:这个图像将是colormap函数的目标。
返回:此方法不返回任何值。
下面的例子演示了matplotlib.pyplot.sci()函数在matplotlib.pyplot中的作用:
示例1
import matplotlib.pyplot as plt
from matplotlib.collections import LineCollection
from matplotlib import colors as mcolors
import numpy as np
N = 50
x = np.arange(N)
ys = [x + i for i in x]
fig, ax = plt.subplots()
ax.set_xlim(0, 20)
ax.set_ylim(0, 20)
line_segments = LineCollection([np.column_stack([x, y]) for y in ys],
linewidths =(0.5, 1, 1.5, 2),
linestyles ='dashed', color ="#eeffdd")
line_segments.set_array(1/(x + 1))
ax.add_collection(line_segments)
line_segments.set_array(x)
plt.sci(line_segments)
plt.title('matplotlib.pyplot.sci() Example')
plt.show()
输出:
示例2
import matplotlib.pyplot as plt
from matplotlib.collections import EventCollection
from matplotlib.collections import LineCollection
import numpy as np
np.random.seed(19680801)
xvalue = np.random.random([2, 10])
xvalue1 = xvalue[0, :]
xvalue2 = xvalue[1, :]
xvalue1.sort()
xvalue2.sort()
yvalue1 = xvalue1 ** 4
yvalue2 = 1 - xvalue2 ** 6
fig = plt.figure()
ax = fig.add_subplot(1, 1, 1)
ax.plot(xvalue1, yvalue1, color ='tab:blue')
ax.plot(xvalue2, yvalue2, color ='tab:green')
xresult1 = EventCollection(xvalue1, color ='tab:blue')
yresult1 = EventCollection(yvalue1, color ='tab:blue',
orientation ='vertical')
ax.add_collection(xresult1)
ax.add_collection(yresult1)
plt.sci(xresult1)
plt.title('matplotlib.pyplot.sci() Example')
plt.show()
输出: