用最小回路求两个简单多边形的交、并、差集
赵军 刘荣珍
Resolving intersection, union and difference of two simple polygons based on minimum circle
ZHAO Jun LIU Rong-zhen
计算机应用 . 2012, (11): 3164 -3167 .  DOI: 10.3724/SP.J.1087.2012.03164