Normalised Normalised/Natural coordinates 1 Case 1/2 (Explained below) 0.2 0.8 Coordinate of point 1 0.61 0.61 Coordinate of point 2 0.8 -0.1 Coordinate of point 3 0.9 0.9 Coordinate of point 4 1 2 3 The three points that make Arc 1 1 4 3 The three points that make Arc 2 Case 1: where C1 = Circle 1 (formed by Arc 1) and C2 = Circle 2 (formed by Arc 2)

Case 2: where C1 = Circle 1 (formed by Arc 1) and C2 = Circle 2 (formed by Arc 2)