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正四面体的球极投影
Floor 1
4Der
4/9/11 20:47
Floor 2
4Der
4/9/11 20:53
可以数出有4个面,4个点,6条棱
最外面的蓝色环面由于经过投影点所以在屏幕上炸开了
Floor 3
4Der
4/9/11 20:54
可以看出正四面体是倒着投影的(即一个底面与桌面平行,一个顶点挨着桌面的样子)
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