Matplotlib: Use Fill_between To Make Coloured Triangles

I've plotted random triangles in space with code below but I want to fill the triangles with colour. I'm aware of the fill_between() function in matplotlib, however I am not sure h

Solution 1:

You could use plt.fill() as follows:

import matplotlib.pyplot as plt

trianglex = [ 1, 10, 7, 1 ] 
triangley = [ 2, 8, 4, 2 ]    
triangle2x = [ 13, 25, 21, 13]
triangle2y = [ 5,  7 , 14, 5 ]

plt.figure('Triangles')
for i in range(3):
    plt.plot(trianglex, triangley, 'o-')
plt.fill(trianglex, triangley)

for i in range(3):
    plt.plot( triangle2x, triangle2y, 'o-')
plt.fill(triangle2x, triangle2y)

plt.show()

Output