Sutherland, I., Sketchpad: A Man-Machine Graphical Communication System, Proceedings--Spring Joint Computer Conference, 1963. |
Bier, E., Snap-Dragging, SIGGRAPH '86 Proceedings, vol. 20, No. 4, Aug. 18-22, 1986. |
James Henry Clark, "3-D design of free-form B-spline surfaces," Computer Science, University of Utah, Salt Lake City, Utah 84112, UTEC-CSc-74-120, Sep. 1974, List of Issustrations iv, Abstract v, Chapter I-IV, pp. 1-62, References, pp. 63-74, Acknowledgements, p. 75, and Form Dd1473, p. 76. |
MiniCad+user manual, pp. 1.2 in Preface, 2.7 in Basics chapter, 3A.33 (palette tools), and 3G.7-3G.12 (Diehl Graphsoft 1988). |
Eric A. Bier, "Snap-Dragging: Interactive Geometric Design in Two and Three Dimensions," Xerox PARC Technical Report EDL-89-2 (Sep. 1989). Also available as Report No. UCB/CSD 88/416, Apr. 28, 1988, Computer Science Division, Department of Electrical Engineering and Computer Science, University of Calif., Berkeley, Calif. 94720 |