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Re:原来存在凹的多边形啊In Reply To:原来存在凹的多边形啊 Posted by:alpc04 at 2006-10-27 00:17:54 我按照这个思路来依然是wa > 直接取任一点把多边形分为n-2个三角形 分别求重心 > x=∑si*xi/∑si > y=∑si*yi/∑si > si为每块三角形的面积 Followed by: Post your reply here: |
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