返回Google圖書搜尋

Parametric Model: a Conceptual Framework for Geometric Modelling Databases

Tōkyō Daigaku. Department of Information ScienceDeepa Krishnan

出版	University of Tokyo, Faculty of Science, Department of Information Science, 1989
URL	http://books.google.com.hk/books?id=2R1kGwAACAAJ&hl=&source=gbs_api

註釋Abstract: "Feature-based design of machine parts is much more convenient than designing a shape in terms of boundary elements such as faces, edges and vertices. In a CAD environment, the design task is usually top-down, error-prone, complex and time consuming. To reduce the time and effort involved, a database that supports the reusability of designs while effectively modelling the structure and behaviour of engineering components with multiple features is essential. The conceptual model of this database should describe all the information related to an object in an application-independent manner to ensure data sharing and facilitate the implementation of data languages that simplify the design task. Most of the present day solid modelling databases lack this kind of a conceptual structure