Computer graphics processing and selective visual display system – Display peripheral interface input device – Cursor mark position control device
Patent
1990-09-17
1995-03-07
Oberley, Alvin E.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Cursor mark position control device
345156, 36447424, G09G 508, G06F 1500
Patent
active
053962656
ABSTRACT:
A tactile computer input device which simulates an object being designed is used with a computer aided design (CAD) system. The input device allows a user to manually manipulate the input device as if it were the object under design. A preferred embodiment is directed toward the design of sheet metal parts. The design begins with a virtual metal sheet which is then manipulated by a user through manual manipulation of the input device. Bending of the virtual object is accomplished by bending of the input device. Stretching and shrinking of the virtual object is accomplished by expanding and compressing the input device. Spatial orientation of the virtual object follows the spatial orientation of the input device by providing the input device with a Polhemus orientation sensor. Other functions for manipulating the virtual sheet metal object include cutting, embossing, and punching.
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Berkery Daniel J.
Filerman Marc
Roberts Andrew
Robertson David C.
Sachs Emanuel
Massachusetts Institute of Technology
Oberley Alvin E.
Saras Steven J.
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