Abstract: Through providing extra information, cutaway view aids engineering view understanding and accelerates the 3D reconstruction process. This paper proposes a processing algorithm in 3D reconstruction based on the analysis of cutaway view features: to use the cutaway view information to intelligently fetch the basic entity, then to conduct Boolean operation on the basic entity and the reference object generated from view silhouette, and in this way to get the target object. The algorithm can process full cutaway views, half cutaway views and parallel cutaway views. Examples are provided to identify its feasibility in the paper.

Key words: engineering graphics, computer aided design, 3D reconstruction, cutaway view