Open In App
Related Articles

Make filled polygons between two horizontal curves in Python using Matplotlib

Improve
Improve
Improve
Like Article
Like
Save Article
Save
Report issue
Report
Matplotlib is an amazing visualization library in Python for 2D plots of arrays. Matplotlib is a multi-platform data visualization library built on NumPy arrays and designed to work with the broader SciPy stack. To create filled polygons between two curves a PolyCollection filling needs to be created between y1 and y2. Parameters for the above task:
  • x: It is an array of length N that holds data of x.
  • y1: It is an array or a scalar of length N that holds data of y.
  • y2: It is an array or a scalar of length N that holds data of y.
Below is the implementation.
import matplotlib.pyplot as plt
   
      
x_inp= input("Enter values of X array:  ").split()
x= [int(i) for i in x_inp]
  
y1_inp= input("Enter values of Y1 array:  ").split()
y1= [int(i) for i in y1_inp]
  
y2_inp= input("Enter values of Y2 array:  ").split()
y2= [int(i) for i in y2_inp]
   
color=input("Enter color:  ")
  
plt.fill_between(x, y1, y2, color = color)
plt.show()

                    
For input:
Enter values of X array:  1 2 3
Enter values of Y1 array:  1 2 1
Enter values of Y2 array:  1 4 1
Enter color:  red
Output : For input:
Enter values of X array:  1 2 3 4 5
Enter values of Y1 array:  1 2 3 2 1
Enter values of Y2 array:  3 5 7 5 3
Enter color:  blue
Output :

Last Updated : 10 Jul, 2020
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads