python线段插值

  

   

    

     

    
    

     

      # -*- coding: UTF-8 -*-
     
    
   

    

     

    
    

     

      import cv2
     
    
   

    

     

    
    

     

      import numpy as np
     
    
   

    

     

    
    

     

      import os
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      import numpy as np
     
    
   

    

     

    
    

     

      import matplotlib.pyplot as plt
     
    
   

    

     

    
    

     

      xn = [10,80,80,10]
     
    
   

    

     

    
    

     

      yn = [20,25,50,51]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      data=[]
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      x_data=[]
     
    
   

    

     

    
    

     

      y_data=[]
     
    
   

    

     

    
    

     

      for index, x_v in enumerate(xn):
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       next_index=index+1
     
    
   

    

     

    
    

     
 if index==len(xn)-1:
     
    
   

    

     

    
    

     

       next_index=0
     
    
   

    

     

    
    

     

       count=4
     
    
   

    

     

    
    

     
 if index in (0,2):
     
    
   

    

     

    
    

     

       count=12
     
    
   

    

     

    
    

     

       x=np.linspace(xn[index],xn[next_index],count,endpoint=False)
     
    
   

    

     

    
    

     

       y=np.linspace(yn[index],yn[next_index],count,endpoint=False)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

       x_data.extend(x)
     
    
   

    

     

    
    

     

       y_data.extend(y)
     
    
   

    

     

    
    

     

       data.extend(zip(x,y))
     
    
   

    

     

    
    

     
 # break
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      print(np.array(data).shape)
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      for aaa in data:
     
    
   

    

     

    
    

     

       print(aaa)
     
    
   

    

     

    
    

     

      plt.plot(x_data, y_data, 'ro')
     
    
   

    

     

    
    

     
 
     
    
   

    

     

    
    

     

      plt.show()
     
    
  
 

文章来源: blog.csdn.net，作者：网奇，版权归原作者所有，如需转载，请联系作者。

原文链接：blog.csdn.net/jacke121/article/details/112557610