Geometric inference engine

Details Geometric inference engine Geometric inference engine

1990-04-27

1992-06-16

Herndon, Heather R.

395133, G06F 15606

Patent

active

051230879

ABSTRACT:
A computer-aided drafting system and methods for automatically locating geometric points for a user. A method includes defining a type of geometric point which includes a point type of interest to the user, setting a hit radius, displaying an object, displaying a curser to indicate a location, testing the object to find a point having the defined point type, which is within the hit radius of the curser, and if a point is found then displaying the point. A computer-aided drafting system includes a computer having a memory and a processor, a display device, a cursor control device, and instructions for directing the processor to automatically locate geometric points of interest to the user.

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Sutherland, I., Sketchpad: "A Man-Machine Graphical Communication System," Proceedings--Joint Computer Conference, 1963.
Bier, E., "Snap-Dragging," Siggraph '86 Proceedings, vol. 20, No. 4, Aug. 18-22, 1986.

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