| 基于三视图的三维线框模型生成算法 |
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| 引用本文： | 张爱军,诸昌钤.基于三视图的三维线框模型生成算法[J].西南交通大学学报,2001,36(5):540-544. |
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| 作者姓名： | 张爱军 诸昌钤 |
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| 作者单位： | 西南交通大学计算机与通信工程学院 |
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| 摘 要： | 依据画法几何学和工程制图的投影原理，介绍了一种基于三视图的线框模型快速生成算法。算法首先根据三视图的二维节点信息生成空间顶点，然后根据二维节点间的连接关系和投影原理来直接确定空间顶点间的连接关系，最后消除空间冗余元素并连接具有连接关系的三维顶点形成空间线框模型。
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| 关 键 词： | 工程制图 三视图 三维线框模型 生成算法 投影原理 冗余元素 连接关系 |
| 文章编号： | 0258-2724(2001)05-0540-05 |
Reconstruction of Wire-frame Model from Orthographic Views |
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| ZHANG Ai jun,ZHU Chang qian.Reconstruction of Wire-frame Model from Orthographic Views[J].Journal of Southwest Jiaotong University,2001,36(5):540-544. |
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| Authors: | ZHANG Ai jun ZHU Chang qian |
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| Abstract: | A straightforward approach that automatically reconstructs a wire frame model from three orthographic views is described in this paper. Firstly, all candidate 3 D vertices are generated from 2 D points in each of three orthographic views. Next, all possible connecting relationships between candidate 3 D vertices are established directly according to connecting relationships between 2 D points in each view, based on the properties of orthographic projection geometry. Then, redundant elements are detected and eliminated on the basis of the properties of regular shape in solid modeling system. Finally, each pair of 3 D vertices with connecting relationship is connected to form a wire frame model. |
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| Keywords: | orthographic projection engineering drawing reconstruction algorithms |
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