05237647 is referenced by 240 patents and cites 8 patents.

A computer system for aiding in the design of an object, comprising a first sensor representing the object and adapted to be moved in three dimensions in a work area by a designer, the first sensor providing signals to the computer system that indicate its position and orientation in the work area, and a second sensor adapted to be moved by the designer in three dimensions in the work area, the second sensor providing signals to the computer system that indicate its position and orientation in the work area; the computer system responds to the signals from the first and second sensors by creating a displayed image corresponding to a three-dimensional model of the object in a virtual work area that corresponds to the designer's work area, the model comprising lines that each have a shape and position that corresponds to movement by the designer of at least one of the sensors, and by controlling the position and orientation of the model in the virtual work area in accordance with the motion of at least one of the sensors.

Title
Computer aided drawing in three dimensions
Application Number
408130
Publication Number
5237647
Application Date
October 28, 1991
Publication Date
August 17, 1993
Inventor
George W Celniker
Cambridge
MA, US
David C Gossard
Andover
MA, US
Todd L Siler
Cambridge
MA, US
Karl T Ulrich
Belmont
MA, US
David R Stoops
Cambridge
MA, US
Emanuel M Sachs
Somerville
MA, US
Andrew F Roberts
Charlestown
MA, US
Agent
Fish & Richardson
Assignee
Massachusetts Institute of Technology
MA, US
IPC
G08C 21/00
G06F 15/60
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