MMCs and PPCs as constructs of curvature regions for form feature determination

Shape feature information about a part is required to analyze the part for downstream issues such as manufacturability and assemblability. One method of obtaining the feature information is feature recognition from the geometric mode. The current approach called Curvature Region (CR) approach for feature determination from solid modes categorizes features into two primitive shape classes: protrusions and depressions. In the first step, these primitive shape classes are recognized from the solid mode. In the next step, the primitive shape classes are matched with feature definitions to obtain features. © 1999 Published by Elsevier Science Ltd. All rights reserved.