Computer graphics processing and selective visual display system – Computer graphics processing – Graphic manipulation
Reexamination Certificate
1999-01-07
2002-05-21
Bayerl, Raymond J. (Department: 2173)
Computer graphics processing and selective visual display system
Computer graphics processing
Graphic manipulation
C345S215000, C178S018010, C178S018030
Reexamination Certificate
active
06392662
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates generally to computer-implemented graphics systems, and in particular, to a method, apparatus, and article of manufacture for providing draw order preservation during object selection in a computer-implemented graphics system.
2. Description of the Related Art
Computer-implemented graphics systems have been widely used by designers, illustrators, drafters, and engineers for a number of years. Most such graphics systems use a graphical user interface (GUI) to display graphical images, such as 2D or 3D models, schematic diagrams, photorealistic images, etc.
In many instances, the graphical images are comprised of multiple layers of multiple objects, where the draw order of the objects is important to the overall composition of the graphical image. Typical systems allow for the reordering and maintenance of draw order with the overall document. However, most graphics systems alter the draw order when an object is selected, bringing the selected object to the “front” of the other objects in the graphical image, generally until a full “regen” or “repaint” is manually invoked.
This may be a problem visually, if the alteration of the draw order alters the composition of the graphical image. For example, if the selected object is a raster image and the other objects are vector images, the raster image will cover the vector images until the raster image is moved it to the “back” of the vector images again. This can be a time-consuming, error prone process, and may render certain operations impossible to perform, such as when the images in front are to be used as a reference for the operations on the selected object.
There is a need in the art, then, for techniques that simplify such selections. Specifically, there is a need in the art for a technique for selecting objects from an image displayed by a computer without altering the draw order of the objects.
SUMMARY OF THE INVENTION
To address the requirements described above, the present invention discloses a method, apparatus, and article of manufacture for providing a user-selectable option for preserving draw order upon selection of an object displayed on a monitor. Once the object is selected from among a plurality of objects displayed on the monitor, at least a portion of an area displayed on the monitor is redrawn in a manner that visually identifies the selected object while preserving a draw order of the objects displayed on the monitor.
REFERENCES:
patent: 5101436 (1992-03-01), DeAguiar et al.
patent: 5377314 (1994-12-01), Bates et al.
patent: 5664128 (1997-09-01), Bauer et al.
patent: 5754177 (1998-05-01), Hama et al.
patent: 5857707 (1999-01-01), Devlin
patent: 5889527 (1999-03-01), Tsai
patent: 5895476 (1999-04-01), Orr et al.
patent: 5900002 (1999-05-01), Bottomly
patent: 6018333 (2000-01-01), Denber
patent: 6124861 (2000-09-01), Lebovitz et al.
patent: 6144974 (2000-11-01), Gartland
patent: 6219052 (2001-04-01), Gould
Ulrich, Laurie Ann and Edward Willett. Using Microsoft PowerPoiint 97, Que Corporation (1998), pp. 172-175, 422-430.*
Haddad, Alexandria and Christopher. Teach Yourself PowerPoint 97 in 10 Minutes, Sam's Publishing (1998), pp. 102-103, 107.
Bayt Jack M.
Bou Robert E.
Autodesk, Inc.
Bayerl Raymond J.
Joseph Thomas J
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