Navigational compass for drawing programs

Details Navigational compass for drawing programs Navigational compass for drawing programs

2005-07-19

2005-07-19

Jankus, Almis R. (Department: 2671)

Computer graphics processing and selective visual display system

Computer graphics processing

Three-dimension

C345S420000

Reexamination Certificate

active

06919887

ABSTRACT:
One or more embodiments of the invention provide a visual cue for placing a first geometric entity in a three-dimensional space represented in a computer-implemented graphics program. A two-dimensional viewport of 3D space is displayed on a display device. The operator selects a first point within the two-dimensional viewport. Based on the first point, a visual cue is displayed in the two-dimensional viewport that indicates a coordinate system plane within the three-dimensional space. The coordinate system plane identifies a plane where the first geometric entity is to be placed. Using the visual cue, a second point is selected on the coordinate system plane in the two-dimensional viewport. Thereafter, the first geometric entity is placed on the coordinate system plane based on the second point.

REFERENCES:
patent: 5734805 (1998-03-01), Isensee et al.
James Fuller. Using Autocad Release 10, 3d Edition. Delmar Publishers Inc., 1989, pp 8-1 through 11-6.

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