Analysing the labels for line drawing of revolving object

Line drawing is one of the resources of changing information on 3-D object between man and computer.In the study of computational vision,the labels of line drawing as an efficient method is to take part in quality-analysise of recovering the 3-D object.Consistent labeling can exclude many impossible configuration.Based on the current theories and previous ones,labels on the forms of junctions of the revolving object are presented in this paper.The rule applies to the compound body that is composed of polyhedron and revolving objection.