符号付偶数交点数列 { 8, 10, 12, 14, 16, 18, 20, 2, 4, 6 } 始点座標 { (2R,(-90-36+10),0,0), (r+R,(-90-36+5),0,0) } 射影交点座標 { (R,(-90-36),0,0), (r,(90+36),0,0), (R,(90-72),0,0), (r,(-90),0,0), (R,(90+72),0,0), (r,(90-36),0,0), (R,(-90+3…