Computer-Aided Design, Volume 23
Volume 23, Number 1, January - February 1991
Jarek Rossignac: Beyond solid modelling. 2-3

E. Levent Gürsöz, Young Choi, Fritz B. Prinz: Boolean set operations on non-manifold boundary representation objects. 33-39
Vincenzo Ferrucci, Alberto Paoluzzi: Extrusion and boundary evaluation for multidimensional polyhedra. 40-50
Fausto Bernardini: Integration of polynomials over n-dimensional polyhedra. 51-58
Pascal Lienhardt: Topological models for boundary representation: a comparison with n-dimensional generalized maps. 59-82
Christoph M. Hoffmann, Jianhua Zhou: Some techniques for visualizing surfaces in four-dimensional space. 83-91
Volume 23, Number 2, March 1991
Jean-François Dufourd: Formal specification of topological subdivisions using hypermaps. 99-116
Joe Rodriguez-Tellez: Chameleon - an integrated desktop CAD system. 117-126
Utz Wever: Global and local date reduction strategies for cubic splines. 127-132
Youngtak Kim, Youngjo Jang, Myunghwan Kim: Stepwise-overlapped parallel annealing and its application to floorplan designs. 133-144
T. Shimada, Y. Tada: Approximate transformation of an arbitrary curved surface into a plane using dynamic programming. 153-159
Volume 23, Number 3, April 1991

A. M. Day: Parallel implementation of 3D convex-hull algorithm. 177-188
Da-Pan Chen, Tser-liang Lin, Chin-chung Hsu: Complex-surface modelling with bias and tension. 189-194

R. Chambon, Michel Tollenaere: Automated Al-based mechanical design of hydraulic manifold blocks. 213-222
Pei-Yung Hsiao, S. F. Steven Chen, Chia-Chun Tsai, Wu-Shiung Feng: A knowledge-based program for compacting mask layout of integrated circuits. 223-231
Volume 23, Number 4, May 1991
Anne M. Mumford: Taking a positive approach to standards. 235-236
T. L. J. Howard: Evaluating PHIGS for CAD and general graphics applications. 244-251
L. R. Henderson: CALS as a solution for digital delivery of technical documents. 252-256
Joris S. M. Vergeest: CAD surface data exchange using STEP. 269-281
A. H. Francis: Computer graphics metafile versus postscript - 'horses for courses'. 297-302
Anne M. Mumford: Computer graphics metafile standard - an update. 303-305
David B. Arnold, S. T. Liapakis, Graham J. Reynolds, N. P. Vezirgiannis: Practical considerations in transporting computer graphics metafiles. 306-311
Robert A. Day, David A. Duce, Julian R. Gallop, Robert Maybury, Dale C. Sutcliffe: project for ISO/IEC graphics and networking standards. 319-327
Volume 23, Number 5, June 1991
Jami J. Shah: Assessment of features technology. 331-343
Elisabetta Bruzzone, Leila De Floriani: Extracting adjacency relationships from a modular boundary model. 344-355
Yuan-Jye Tseng, Sanjay Joshi: Determining feasible tool-approach directions for machining Bézier curves and surfaces. 367-379
E. Sittas: 3D design reference framework. 380-381
E. Sittas: 3D design reference framework. 383-384
Dieter Roller: An approach to computer-aided parametric design. 385-391
Volume 23, Number 6, July - August 1991
Robert P. Markot, Robert L. Magedson: Procedural method for evaluating the intersection curves of two parametric surfaces. 395-404
Ahmad H. Nasri: Boundary-corner control in recursive-subdivision surfaces. 405-410
Anath Fischer, Moshe Shpitalni: Accelerating the evaluation of volumetric modelers by manipulating CSG trees and DAGs. 420-434
P. Treacy, John B. Ochs, Tulga M. Ozsoy, Nanxin Wang: Automated tolerance analysis for mechanical assemblies modeled with geometric features and relational data structure. 444-453
Shape preservation and the fair of curves. 460
Degree reduction of Bézier curves. 460-461
D. Willey: Computer discipline and the design practice shaping our future : Aart Bijl Edinburgh University Press (1990) 240 pp. 462
Volume 23, Number 7, September 1991

S. Shetty, P. R. White: Curvature-continuous extensions for rational B-spline curves and surfaces. 484-491
Steven C. Ferguson, Steven Pruess: Shape-preserving interpolation by parametric piecewise cubic polynomials. 498-505
Jean Paul Gourret, Nadia Magnenat-Thalmann, Daniel Thalmann: Modeling of contact deformations between a synthetic human and its environment. 514-520
S. A. Meguid: Integrated computer-aided design of a mechanical system: an industrial case study. 521-528
Volume 23, Number 8, October 1991
Chris J. Thornton: Introduction to connectionist computing. 530-538
W. Y. Ng: Generalized computer-aided design system: a multiobjective approach. 548-553
Javier Sánchez-Reyes: Single-valued surfaces in cylindrical coordinates. 561-568
Menno Kosters: Curvature-dependent parameterization of curves and surfaces. 569-578
Alexander P. Pobegailo: Local interpolation with weight functions for variable-smoothness curve design. 579-582
Volume 23, Number 9, November 1991
René Bañares-Alcántara: Representing the engineering design process: two hypotheses. 595-603
K. H. Kim, S. B. Park: Delay-time modelling and critical-path verification for digital designs. 604-614
V. K. Raj: Computer-aided design of pipelined and multiclocked microarchitectures. 615-622
Márta Szilvási-Nagy: Flexible rounding operation for polyhedra. 629-633
Hans-Peter Seidel: Computing B-spline control points using polar forms. 634-640
Utz Wever: Optimal parameterization for cubic splines. 641-644
Yves De Montaudouin: Resolution of P(x,y)=0. 653-654
Volume 23, Number 10, December 1991
Jonathan R. Corney, Doug E. R. Clark: Method for finding holes and pockets that connect multiple faces in 2 1/2D objects. 658-668
K. Kato: Generation of N-sided surface patches with holes. 676-683
Chris Karakas: Hidden-line algorithm based on range searching. 684-691
L. M. Koci: Modification of Bézier curves and surfaces by degree-elevation technique. 692-699
Fuhua Cheng, Brian A. Barsky: Interproximation: interpolation and approximation using cubic spline curves. 700-706
P. Montès: Kriging interpolation of a Bézier curve. 713-716



