Intersecting features extraction from 2D orthographic projections

This paper describes a new approach to solve the problem of intersecting features extraction. Feature extraction is important from several standpoints-automated process planning, NC machining, automated assembly and virtual prototyping. Feature extraction reported in the literature indicates limited success mostly in extracting a partial List of non-intersecting features. There has not been much success in the extraction of intersecting features. Techniques must continue to be developed to extract intersecting features and identify them as combinations of standard features. Our methods of intersecting feature extraction are different from current methods in that they operate on 2D CAD as input data, thus obviating analysis in complex 3D space. (C) 1998 Elsevier Science Ltd. All rights reserved.