回複：re:怎樣計算多邊形的麵積,如果隻知道其邊長????????

來源: 於 2004-11-02 13:17:14 [舊帖] [給我悄悄話] 本文已被閱讀：次

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