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那还是实现起来不简单吧....

Posted by richardhuang at 2004-12-10 12:57:05 on Problem 2150
In Reply To:Re:nealzane大牛用什么方法做的?说一下吧 Posted by:nealzane at 2004-12-10 10:47:22
> area of a space planar polygon = 
> area of its shadow / cos(angle between the plane it belongs to and the plane the shadow belongs to)

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