由于在属性中不能设置动态内容(线宽度，外观，颜色等)，所有的边和面一样，因此透视效果比较混乱，特别是在高面数的多面体。

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.

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并针对支路网的密度、红线宽度、车道宽度、分隔设置以及路边停车问题进行了深入分析。

Finally, the paper further analyzes local road density, right-of-way, lane-width, separation facilities, and road-side parking issues.

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