Feature Technology

Geometric modelling has become accepted by all engineering disciplines for a wide range of applications. Many existing and potential applications, particularly in the eld of manufacturing, need various aspects of features technology. This paper describes the current state of features technology and discusses its uses, limitations, and beneets. 3 Introduction A geometric model accurately represents the shape of a whole engineering component. But, for most applications, parts of the shape are needed piecemeal { we may need to know where the slots and holes in the component are, and later we may need to know where its projecting lugs are, and so on. These parts of

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