A Retrieval Method of CAD Semantic Model Based on Design Intention

摘要

With the development of 3D modeling technology, the number of 3D models has been increasing and people have been paid more and more attention to the 3D model retrieval technology. This paper presents a CAD semantic model retrieval method based on design intent, which is based on the design intention annotation of 3D model. Firstly, the three-dimensional model ontology semantic tree is built on the basis of modeling information, analyze information and manufacturing information. Then the model semantic trees are built according to the ontology semantic tree and then the similar nodes are returned by comparing the similarity between the target retrieval set and the semantic tree nodes. Finally, the semantic similarity of the model is calculated according to the return nodes and system returns the similar model to complete the search.