Method for selecting an item on a graphics screen

Details Method for selecting an item on a graphics screen Method for selecting an item on a graphics screen

1996-03-14

1997-12-09

Liang, Regina D.

Computer graphics processing and selective visual display system

Display peripheral interface input device

Light pen for fluid matrix display panel

345203, G09G 508

Patent

active

056965338

ABSTRACT:
An item buffer is used to determine which graphic object has been picked by a user. A graphics object list is traversed to display each graphic object and assign a unique item identifier to each. For each pixel location in each of the graphic objects, the unique item identifier is stored at a corresponding location in the item buffer. A graphics object is selected using a pointer device, and the pointer device location is used to access the item buffer and retrieve the item identifier that defines the graphic object picked. If a pixel location in the item buffer is not large enough to hold the complete item identifier, the item identifier is partially constructed in each of several passes, and the pass data combined in main memory.

REFERENCES:
patent: 4116444 (1978-09-01), Mayer et al.
patent: 4754267 (1988-06-01), Reynolds et al.
patent: 4896291 (1990-01-01), Gest et al.
patent: 5555003 (1996-09-01), Montgomery et al.

Affiliated with

Also associated with

Rating

Method for selecting an item on a graphics screen does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for selecting an item on a graphics screen, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for selecting an item on a graphics screen will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1611248