摘要
提出了一种由三视图重建三维实体的算法。该算法在处理含有圆柱体的相贯体的重建问题时有很好的效果。算法的主要步骤是:首先从三视图中找出内部实体和特征实体的投影,运用平扫和旋转的运算法则构造出内部实体和特征实体;然后对三视图进行处理,得到新的视图外形轮廓,再通过平扫的运算法则构造出基本实体;最后将得到的内部实体、特征实体和基本实体进行交、并、差的布尔运算得到所求实体。
In this paper,a method for automatic reconstruction of 3D solid models from 2D orthographic views is proposed. The algorithm is a good method for dealing with the reconstruction of intersectant entity including cylinder.The algorithm consists of the following steps:firstly,find the views of inner geometric entities and feature entities from three views,and construct the inner entities and feature entities by extrusion and revolution:then,pretreat the orthographic views and obtain new outer profiles,basic primitives are obtained by extrusion;finally,use Boolean operations to obtain the solid.
出处
《机械》
2006年第S1期108-110,共3页
Machinery
关键词
三视图
三维重建
平扫
orthographic views
reconstruction
extrusion
revolution
