成分開始交点数列 { 1, 9 } 符号付偶数交点数列 { 12, -14, 16, 2, 4, -6, 8, 10 } 始点座標 { { (3r,-45,2r/3,0), (2r,-45,2r/3,0) }, { (3r,135,-3r/2,0), (2r,135,-2r/3,0) } } 射影交点座標 { (r,-45,2r/3,0), (r,135,2r/3,0), (r,-135,-2r/3,0), (0,0,2…