隨機漫步生成是無規則的,是系統自行選擇的結果。根據設定的規則自定生成,上下左右的方位,每次所通過的方向路徑。app
首先,建立一個RandomWalk()類和fill_walk()函數dom
random_walk.py函數
from random import choice class Randomwalk (): '''一個生成隨機數漫步的類''' def __init__(self,num_point=5000): '''初始化隨機漫步的屬性''' self.num_point = num_point #全部隨機漫步的開始都是座標[0,0] self.x_lab = [0] self.y_lab = [0] def fill_walk(self): '''計算隨機漫步的全部點''' while len(self.x_lab) < self.num_point: #決定前進方向以及前進的距離 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 #拒絕原地不動 if x_step == 0 and y_step == 0: continue #計算下一個點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)
二、繪製隨機漫步圖spa
rw_visual.py
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()
三、生成效果圖片code
四、修改代碼-->隱藏邊框
rw_visual.py
import matplotlib.pyplot as plt from random_walk import Randomwalk from random import choice while True: rw = Randomwalk() rw.fill_walk() #設置繪畫窗口大小 plt.figure(dpi=128,figsize=(10,6)) point_numbers = list(range(rw.num_point)) #突出起點(0,0)和終點 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) #隱藏座標軸 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
五、展現效果blog