Excerpt from Feature-Based Control of a Machining CenterThe machining features used to make a specific part may be instances of a fixed library of parametrically defined features, or they may be defined without a library by making boundary or constructive solid geometry representations.There are, of course, many alternative definitions of machining features, we do not deal with them here. Issues regarding machining features are discussed in [kramer2].About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.