Computer graphics processing and selective visual display system – Computer graphics processing – Shape generating
Reexamination Certificate
1998-06-15
2001-05-15
Luu, Matthew (Department: 2779)
Computer graphics processing and selective visual display system
Computer graphics processing
Shape generating
C345S442000, C345S443000, C345S960000
Reexamination Certificate
active
06232985
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention generally relates to computer-implemented user interfaces, and in particular, to automatically generating continuous, staggered, baseline and ordinate dimension arrangements in a computer-aided drafting (CAD) program using an interactive, dynamic user interface.
2. Description of Related Art
Computer-aided design (CAD) systems have been widely used by designers, drafters, and engineers for a number of years. Most such systems use a graphical user interface (GUI) to display graphical images, such as photorealistic images, 2D or 3D models, schematic diagrams, etc.
Historically, CAD systems have used dimension lines to describe the geometry of objects within an image. Dimension lines are often used to describe the lengths of features or the distances between features. In prior art CAD systems, however, such dimension lines must be manually drawn by the user, which is tedious and time-consuming. Thus, there is a need in the art for improved techniques for generating dimension lines.
SUMMARY OF THE INVENTION
To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a method, apparatus and article of manufacture that provides an interactive, dynamic, automatic dimension arrangement generator for a computer-aided drafting (CAD) system. The dimension arrangement generator selects one or more geometric entities displayed on the monitor of the CAD system and extracts one or more relevant dimension points for the selected geometric entities. The dimension arrangement generator selects one or more dimension line positions for the relevant dimension points, and then generates and displays the dimension arrangement for the selected geometric entities on the monitor of the CAD system in accordance with the extracted dimension points and selected dimension line positions.
REFERENCES:
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patent: 5214757 (1993-05-01), Mauney et al.
patent: 5548707 (1996-08-01), LoNegro et al.
patent: 5644692 (1997-07-01), Eick
patent: 5821941 (1998-10-01), Millstein
patent: 5969708 (1999-10-01), Walls
patent: 5999186 (1999-12-01), Jackson
Chase Kurt Philip
Jones Kevin Cummings
Taylor Valerie
Autodesk, Inc.
Gates & Cooper LLP
Harrison Chante′
Luu Matthew
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