We are given four segments as a pair of coordinates of their end points. We need to tell whether those four line segments make a rectangle or not.
Input : segments = [(4, 2), (7, 5), (2, 4), (4, 2), (2, 4), (5, 7), (5, 7), (7, 5)] Output : Yes Given these segment make a rectangle of length 3X2. Input : segment = [(7, 0), (10, 0), (7, 0), (7, 3), (7, 3), (10, 2), (10, 2), (10, 0)] Output : Not These segments do not make a rectangle. Above examples are shown in below diagram.
This problem is mainly an extension of How to check if given four points form a square
We can solve this problem by using properties of a rectangle. First, we check total unique end points of segments, if count of these points is not equal to 4 then the line segment can’t make a rectangle. Then we check distances between all pair of points, there should be at most 3 different distances, one for diagonal and two for sides and at the end we will check the relation among these three distances, for line segments to make a rectangle these distance should satisfy Pythagorean relation because sides and diagonal of rectangle makes a right angle triangle. If they satisfy mentioned conditions then we will flag polygon made by line segment as rectangle otherwise not.
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Improved By : harrypotter0