import numpy as np #已知平行四邊形三個點，求第四個點 #計算兩點之間的距離 def CalcEuclideanDistance(point1,point2):vec1 = np.array(point1)vec2 = np.array(point2)distance = np.linalg.norm(vec1 - vec2)return distance #計算第四個點 def CalcFourthPoint(point1,point2,point3): #pint3為A點D = (point1[0]+point2[0]-point3[0],point1[1]+point2[1]-point3[1])return D #三點構成一個三角形，利用兩點之間的距離，判斷鄰邊AB和AC,利用向量法以及平行四邊形法則，可以求得第四個點D def JudgeBeveling(point1,point2,point3):dist1 = CalcEuclideanDistance(point1,point2)dist2 = CalcEuclideanDistance(point1,point3)dist3 = CalcEuclideanDistance(point2,point3)dist = [dist1, dist2, dist3]max_dist = dist.index(max(dist))if max_dist == 0:D = CalcFourthPoint(point1,point2,point3)elif max_dist == 1:D = CalcFourthPoint(point1,point3,point2)else:D = CalcFourthPoint(point2,point3,point1)return Dprint(JudgeBeveling((0,1),(1,0),(1,1))) print(JudgeBeveling((5,39),(500,35),(496,17)))

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