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一、剖面制作的基本原理剖面制作的基本原理是:根据虚拟的剖面点垂线在象对上的构象,利用立体观察的原理恢复剖面点垂线在空间的位置。这些剖面点垂线与立体模型表面的交点,就是所要求的剖面点。名词定义,如图1通过空间任意两点AB的铅垂面叫AB的垂直剖面,用W表示;过指定的起始点A作水平面叫A点的基准面用g表示;垂直剖面和地形表面的交线叫剖
First, the basic principle of profile production Profile production of the basic principle is: According to the virtual profile point perpendicular to the image on the conformation, the use of three-dimensional observation principle to restore the cross-sectional point perpendicular to the position in space. The point of intersection of these profile points perpendicular to the surface of the 3D model is the required profile point. The definition of nouns, as shown in Figure 1 through the space of any two AB vertical plane called AB vertical section, denoted by W; specified starting point A for the horizontal plane called A point with g said plane; vertical section and topography of the surface Intersection called profile