脚本之家,脚本语言编程技术及教程分享平台!
分类导航

Python|VBS|Ruby|Lua|perl|VBA|Golang|PowerShell|Erlang|autoit|Dos|bat|

服务器之家 - 脚本之家 - Python - 使用python 的matplotlib 画轨道实例

使用python 的matplotlib 画轨道实例

2020-04-13 10:30cq_pf Python

今天小编就为大家分享一篇使用python 的matplotlib 画轨道实例,具有很好的参考价值,希望对大家有所帮助。一起跟随小编过来看看吧

如下所示:

使用python 的matplotlib 画轨道实例
?
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
import numpy as np
import matplotlib.pyplot as plt
import matplotlib.patches as mpatches
from scipy import stats
 
fig = plt.figure()
ax = fig.add_subplot(111, xlim=(0, 10), ylim=(-4, 4))
sx=0;sy=0;r=1.5 ;
circle = mpatches.Circle((sx,sy),r,ec='b',fc = 'b',alpha=0.6)
ax.add_patch(circle)
n = 5
alpha = np.linspace(-np.pi/2,np.pi/2,100)
for i in range(1,n+1):
 a = (i+1)*2
 b = (i+1)
 plt.plot(a*np.cos(alpha),b*np.sin(alpha))
 if i <= 3:
  ax.text(a+1,0,'layer.%d'%(i-1),ha='center',va='center')
rate = 3
Jnum = 100
for i in range(Jnum):
 data = stats.poisson.rvs(mu = rate, loc = 0 , size = 1)
 while data == 0:
  data = stats.poisson.rvs(mu = rate, loc = 0 , size = 1)
 data = data[0]
 r = np.random.random()
 beta = (np.random.random()-0.5)*np.pi
 print beta
 data += r
 a = (data+1)*2*np.cos(beta)
 b = (data+1)*np.sin(beta)
 ax.scatter(a,b, c='y',edgecolors = 'y')
xx = [3.5 , 6.8,6.8]
yy = [-1.8,0.9,3.1]
pp = [1.00,0.85,0.75]
rota = [-45,0,0]
for i in range(3):
 plt.plot((1.5,xx[i]) , (0,yy[i]) , 'r')
 ax.scatter(xx[i],yy[i], c='y',edgecolors = 'b')
 ax.text(xx[i] , yy[i] , 'probability %lf'%pp[i] , ha = 'center' )
tx = np.linspace(0,10,10)
ty = np.linspace(-4,-4,10)
ax.set_xticks(tx)
ax.set_xticklabels((''))
ax.set_yticks(ty)
ax.set_yticklabels((''))
#plt.axis('off')
plt.show()

以上这篇使用python 的matplotlib 画轨道实例就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持服务器之家。

原文链接:https://blog.csdn.net/cq_pf/article/details/50629873

延伸 · 阅读

精彩推荐