摘要
提出了基于扫描工程图的参数化设计的研究思想及实现方法，讨论了矢量图形的几何信息、约束信息的自动识别，并研究了图形归整和尺寸约束驱动求解等关键技术；采用了双向十字链表存储尺寸链稀疏矩阵并解决了其双向遍历问题；实现了图形的参数化尺寸驱动和多视图的联动以及产品图纸与CAD系统的直接沟通与衔接，初步解决了利用大量存档图纸进行改型设计的问题。特别是为系列化产品设计提供了一理想的参数化建库工具。
Presents a kind of crehtive idea and the method of its realization in theprecision parametric reconstruction of scanned engineering drawings. The drivenmechanism of structural constraints and size constraints, the linking movement of2D views and the method for creating the sequence parametric graphic lib are discussed. This method is suitable in series product design, modifying and imitationdesign, comparative design of schematic dynamic design, variable imitation designof movement mechanisms. It enables the formation of graphic library in time of designing. With it the design flexibility and the design efficiency are greatly improved. The method provides an ideal tool for parametric lib－making.
出处
《兵工学报》
EI
CAS
CSCD
北大核心
1998年第4期344-347,共4页
Acta Armamentarii
关键词
扫描
约束
尺寸驱动
稀疏矩阵
工程图
CAD
scanning, constraint, dimension driving, sparse matrix, double cross dimension chain
