符号付偶数交点数列 { 12,-14,16,18,20,-22,24,26,28,-30,32,2,4,-6,8,10 } 始点座標 { (2r,-45-10,0,-9r), (2r,-45-10,0,-7r) } 射影交点座標 { (2r,-45-20,0,0), (1.6r,0,0,0), (2r,45+20,0,0), (1.8r,135,0,0), (2r,225-20,0,0), (1.6r,-90,0,0), (2r,-45…