基于工程语义的基元关系及基元识别研究

Researche on the Relation and Identification of the Features Based on Engineering Semantics

基于工程语义的基元识别包括显式基元体识别、隐式基元体识别。显式基元体识别通过完全匹配和缺省匹配予以实现;隐式基元体识别通过基元关系引导和隐式语义引导予以实现。该识别方法对实现图样的计算机理解与识别具有重要的实际意义。

The identification of the features based on engineering semantics involves visible identifications of feature volume and invisible ones. The achievement of the visible identifications is done through complete and deficient matching, but the latter is achieved through the feature relation introduction and the invisible semantics. Both the relation and identification of the features based on engineering semantics are vital to the realization in computer understanding and identifying of drawings.