Intersecting feature recognition based on 3D solid model of graph
Yu-Bin Yang · Journal of Computer Applications · 2009
As it is hard to recognize intersecting features automatically,a new method to recognize such intersecting features in 3D solid model was proposed.First,it used the Attributed Adjacent Graph(AAG)to define the topological structure among typical simple features and then used the Geometric Relation Restriction Graph(GRRG)to describe the geometric constraint relation among their faces.Second,guided by the predefined AAG and GRRG,it used subgraph matching algorithm to recognize typical simple features with their AAG not varied from the given 3D model.The recognized features were fixed and removed from the solid model for further recognition.Next,the proposed method progressively recognized those simple features whose topology varied by adding mirror face operations.Finally,the intersecting features could be denoted as a group of simpler feature entities joined together and be recognized effectively.