Python – Sympy Polygon.is_convex() Method

In Sympy, the function Polygon.is_convex() is used to check whether the given polygon is convex or not. A polygon is said to be convex if all its interior angles are less than 180 degrees and there are no intersections between the sides.

Syntax: Polygon.is_convex()

Returns:
 True: True if this polygon is convex, False otherwise.

Example #1:

Python3

# import Point, Polygon
from sympy import Point, Polygon

# creating points using Point()
p1, p2, p3, p4 = map(Point, [(0, 0), (1, 0), (5, 1), (0, 1)])

# creating polygon using Polygon()
isConvex = Polygon(p1, p2, p3, p4)

# using is_convex()
print(isConvex.is_convex())

Output:

True

Example #2:

Python3

# import Point, Polygon
from sympy import Point, Polygon

# creating points using Point()
p1, p2, p3, p4, p5 = map(Point, [(0, 0), (3, 2), (4, 5), (7, 1), (6, 3)])

# creating polygon using Polygon()
isConvex = Polygon(p1, p2, p3, p4, p5)

# using is_convex()
print(isConvex.is_convex())

Output:

False