在工程制图中常把物体在某个投影面上的正投影称为视图,相应的投射方向称为视向,分别有正视、俯视、侧视。三视图,正视图,侧视图,俯视图,即是三面投影图。
论述三维立体图生成三面投影图的方法,解决在绘制投影图中的困难。
The method of three-planes projection graph created by 3D spatial graph is discussed. It solve the difficult in drawing projection graph.
三面投影图(或者说主视图、俯视图及其左视图)所图示的空间形体一般可以完全确定的。
The space configuration illustrated in v? H? W three-plane projection drawing (i. e. front view, top view and left view) can generally be determined completely.
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