02775nam a2200421 4500 20260818090344.0 280898 th eng .b10027907 AIT Thesis no. CS-91-3 Liu, Hong Wei A destructive solid geometry algorithm for automatic machining feature extraction Bangkok : Asian Institute of Technology, 1991 96 p. Thesis ; no. CS-91-3 A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1991 One way to solve the data transferring from Computer Aided Design (CAD) to Computer Aided Process Planning (CAPP) is to convert the Constructive Solid Geometry (CSG) tree data to the Destructive Solid Geometry (DSG) tree data . The CSG tree data contains primitives and operations between the primitives structured as a binary tree. The operation in a CSG tree can be the union, intersection, or difference. In contrast, the DSG tree data is structured by only using difference operations to link the primitives. In this work, a method used to convert the union operations in a CSG tree to their equivalent difference operations, has been extended to convert both intersection and union operations in a CSG tree to their equivalent difference operations. The flexibility and efficiency of this method is discussed. A converting algorithm has been proposed and illustrated with the Autosolids provided by AutoCAD release 11. Computer graphics Computer-aided design Bohez, Erik L.J., Chairperson H. N. Phien, Co-Chairperson Zhao, Ming, Examination committee Asian Institute of Technology. Thesis ; no. CS-91-3 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B17323 .b10027907 mnait x 240409 2 951012 m a x 2 mnait mnait mnarc 22 40 20 Barcode : 30050120677199 CREATED : 1995-10-13 RECORD # : i1001035x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120372965 CREATED : 2016-08-06 RECORD # : i13025831 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050121000615 CREATED : 2021-03-03 RECORD # : i13330196 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 27815 27815 0 0 0 0 MAIN MAIN mnait 2026-08-18 10.00 0 AIT Thesis no. CS-91-3 30050120677199 2026-08-18 09:03:44 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no. CS-91-3 30050120372965 2026-08-18 09:03:44 2026-08-18 40 0 0 0 0 MAIN MAIN mnait 2026-08-18 0 AIT Thesis no. CS-91-3 30050121000615 2026-08-18 09:03:44 1 2026-08-18 20