回复：re:怎样计算多边形的面积,如果只知道其边长????????

来源: 于 2004-11-02 13:17:14 [旧帖] [给我悄悄话] 本文已被阅读：次

I met this question before. go to google to search 'image process, area'. you can find the agrithem about it.