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发表于 2010-2-18 22:41:28
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In all projections the observer's point of view remains fixed,at some distance,so as to have only a discret perspective. As attributes cannot be set dynamically (edge width,face color ,etc ),all edges and faces look the same,so perspective can be confusing,especially in larger polyhedra.
在所有视图中,观察者的视角都是固定在一定距离上的,因此只有微观的视角。鉴于属性(边缘宽度、面的颜色等)不能进行动态设置,所有的边缘和面看起来都是一样的。因此,这些视角很容易把人搞晕,在多面体比较大的情况下尤为明显。 |
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