Activating a filling of a graphical object

Details Activating a filling of a graphical object Activating a filling of a graphical object

2006-04-04

2006-04-04

Bella, Matthew C. (Department: 2676)

Computer graphics processing and selective visual display system

Computer graphics processing

Adjusting level of detail

C345S469100, C345S470000, C345S163000

Reexamination Certificate

active

07023439

ABSTRACT:
A method is disclosed for activating the filling of a graphical object. The method generates, for a current scanline, a plurality of edge records associated with an edge of the object from a previously generated edge record for a previous scanline. One of these edge records comprises fractional data which defines a minimum position of the edge within the current scanline or on a border thereto with respect to a direction along said current scanline. Another of these edge records comprises fractional data which defines a maximum position of the edge within the current scanline or on a border thereto with respect to a direction along the current scanline. One of these edge records comprises fractional data which defines an exit position of the edge from the current scanline. The previously generated edge record comprises fractional data defining an exit point of the edge from the previous scanline. After the edge record generation step, the method then activates, for the current scanline, the filling of the graphical object over a run of pixels or pixel from a minimum pixel position to a maximum pixel position. The minimum pixel position is derived from rounding down a value equal to the fractional data of the edge record defining the minimum position, and the maximum pixel position is derived from rounding up a value equal to the fractional data of the edge record defining the maximum position.

REFERENCES:
patent: 5471568 (1995-11-01), Webb et al.
patent: 5625768 (1997-04-01), Dye
patent: 6288724 (2001-09-01), Kumar et al.
patent: 6341020 (2002-01-01), Rumph et al.
patent: 6483519 (2002-11-01), Long et al.
patent: 2002/0015039 (2002-02-01), Moore
patent: 323558 (1989-07-01), None
Porter, T., et al., “Compositing Digital Images,” Computer Graphics, vol. 18, No. 3 (Jul. 1984), pp. 253-259.

Affiliated with

Also associated with

Rating

Activating a filling of a graphical object does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Activating a filling of a graphical object, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Activating a filling of a graphical object will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3589557