Abstract

A new method of B-Rep model partial matching based on topoisomerase is proposed. By extracting B-Rep information of the model, the CAD models are represented by the AAG (attribute adjacent graph). Next, the CAD models are expressed as the same topology by Euler operation. Finally, the sub-graph isomorphism approach is used to achieve the partial matching. Experimental results show that this method can realize the partial matching of CAD model, and its efficiency meets the requirement of engineering retrieval.

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