摘要
针对工程设计过程中的空间相似性问题提出了一维空间序结构的相似性计算概念并给出了其数学表示及计算方法。在一维空间序结构相似性研究的基础上,提出了典型方向法来解决三维空间序结构相似性的问题,给出了具体的步骤和详细的计算方法,内容包括:确定典型方向;三维场景的面分组;相似元的衍生构造;最终相似性的计算等。文章最后给出了一个场景间相似性计算的实例,表明典型方向法对于工程设计过程中基于形状的联想方法有着重要应用意义。
With respect to the special similarity calculation of engineering design process, the concept of onedimensional spatial sequence structure similarity calculation is presented and also the mathematical representation and calculation methods are provided. On the basis of research on one-dimensional space sequence structure similarity, the typical direction method is presented to solve the three-dimensional sequence structure similarity problem, and the detailed calculation method is provided, which include the definitions of typical direction, the face grouping of three-dimensional scene, the construction of similarity elements and the calculation of final similarity. In the end of the paper an example of similarity calculation between three-dimensional scenes is provided which indicates that the typical-direction method is practical for the associational method based on shape.
出处
《工程图学学报》
CSCD
2002年第3期64-70,共7页
Journal of Engineering Graphics
基金
国家自然科学基金资助项目(59875048
60033020)
国家863高技术研究发展计划计划资助项目(2001AA114170)
