Computer graphics processing and selective visual display system – Display peripheral interface input device – Mechanical control
Patent
1997-08-29
1999-10-26
Hjerpe, Richard A.
Computer graphics processing and selective visual display system
Display peripheral interface input device
Mechanical control
345420, 345433, 318561, G09G 500
Patent
active
059736780
ABSTRACT:
A method and system for manipulating a three-dimensional object in a computer-aided design (CAD) environment utilizes a force feedback interface. A gravitational sphere is defined around each of the plurality of input parameters of a mathematical model defining a shape, location and orientation of the object. A force is applied to the force feedback interface based on the gravitational spheres and the position of the force feedback interface. An input signal is received from the force feedback interface based on the applied force indicating selection of one of the plurality of input parameters. The selected input parameter can then be edited according to an edit signal generated by the user via the force feedback interface. In addition, the edit signal can be limited according to predetermined constraints via the force feedback interface.
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Buttolo Pietro
Chen Yifan
Stewart Paul Joseph
Ford Global Technologies Inc.
Godwin Paul K.
Hjerpe Richard A.
May Roger L.
Nguyen Francis
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