Method and apparatus for trimming B-spline descriptions of patch

Details Method and apparatus for trimming B-spline descriptions of patch Method and apparatus for trimming B-spline descriptions of patch

1991-12-06

1994-11-08

Nguyen, Phu K.

G06F 1562

Patent

active

053634780

ABSTRACT:
A graphics accelerator responds to commands from a computer in a graphics system by storing the definitions of non-uniform rational B-spline patches and their associated trimming curves. As a convenience in developing a parametric representation, a complete trimming curve is generally divided into a collection of ordered segments, each of which has different parametric functions. But this means that the end point in one segment might not be exactly identical to the first point in the succeeding segment, even though they are in principle the same point. This lack of identity can produce undesirable artifacts in the displayed image. This problem is avoided by always taking the first point of a succeeding segment in place of the last point of the preceding segment.

REFERENCES:
patent: 5175809 (1992-12-01), Wobermin et al.
patent: 5185855 (1993-02-01), Kato et al.

Affiliated with

Also associated with

Rating

Method and apparatus for trimming B-spline descriptions of patch 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 and apparatus for trimming B-spline descriptions of patch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for trimming B-spline descriptions of patch will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1789359