随机漫步生成是无规则的,是系统自行选择的结果。根据设定的规则自定生成,上下左右的方位,每次所经过的方向路径。
首先,创建一个randomwalk()类和fill_walk()函数
random_walk.py
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from random import choice
class randomwalk ():
'''一个生成随机数漫步的类'''
def __init__( self ,num_point = 5000 ):
'''初始化随机漫步的属性'''
self .num_point = num_point
#所有随机漫步的开始都是坐标[0,0]
self .x_lab = [ 0 ]
self .y_lab = [ 0 ]
def fill_walk( self ):
'''计算随机漫步的所有点'''
while len ( self .x_lab) < self .num_point:
#决定前进方向以及前进的距离
x_direction = choice([ 1 , - 1 ])
x_distance = choice([ 0 , 1 , 2 , 3 , 4 ])
x_step = x_direction * x_distance
y_direction = choice([ 1 , - 1 ])
y_distance = choice([ 0 , 1 , 2 , 3 , 4 ])
y_step = y_direction * y_distance
#拒绝原地不动
if x_step = = 0 and y_step = = 0 :
continue
#计算下一个点x和y的值
next_x = self .x_lab[ - 1 ] + x_step
next_y = self .y_lab[ - 1 ] + y_step
self .x_lab.append(next_x)
self .y_lab.append(next_y)
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2、绘制随机漫步图
rw_visual.py
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import matplotlib.pyplot as plt
from random_walk import randomwalk
from random import choice
rw = randomwalk()
rw.fill_walk()
plt.scatter(rw.x_lab,rw.y_lab,s = 15 )
plt.show()
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3、生成效果图片
4、修改代码-->隐藏边框
rw_visual.py
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import matplotlib.pyplot as plt
from random_walk import randomwalk
from random import choice
while true:
rw = randomwalk()
rw.fill_walk()
#设置绘画窗口大小
plt.figure(dpi = 128 ,figsize = ( 10 , 6 ))
point_numbers = list ( range (rw.num_point))
#突出起点(0,0)和终点
plt.scatter( 0 , 0 ,c = 'green' ,edgecolors = 'none' ,s = 100 )
plt.scatter(rw.x_lab[ - 1 ],rw.y_lab[ - 1 ],c = 'red' ,edgecolors = 'none' ,s = 100 )
#隐藏坐标轴
plt.axes().get_xaxis().set_visible(false)
plt.axes().get_yaxis().set_visible(false)
plt.scatter(rw.x_lab,rw.y_lab,c = point_numbers,cmap = plt.cm.blues,edgecolors = 'none' ,s = 15 )
plt.show()
keep_running = input ( "make another walk?(y/n): " )
keep_running = keep_running.lower()
if keep_running = = 'n' :
break
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5、展示效果
总结
以上所述是小编给大家介绍的python实现随机漫步功能,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对服务器之家网站的支持!
原文链接:https://www.cnblogs.com/JeremyWYL/archive/2018/07/09/8652110.html