QQH algorithm provides a fast terminate condition based on judging the area and avoids the special process for the exception , as well as determines whether interference occurs or not by region test .
该方法给出了基于面积值判断的快速终止条件，避免了异常情形的特殊处理，并能通过区域测试快速判定两多边形是否发生干涉。
qqh