MANIPULATION OF SPLINES BASED ON A SUMMARY SPLINE

摘要

A summary spline curve can be constructed from multiple animation spline curves. Control points for each of the animation spline curves can be included to form a combined set of control points for the summary spline curve. Each of the animation spline curves can then be divided into spline curve segments between each neighboring pair of control points in the combined set of control points. For each neighboring pair, the spline curve segments can be normalized and averaged to determine a summary spline curve segment. These summary spline curve segments are combined to determine a summary spline curve. The summary spline curve can then be displayed and/or modified. Modifications to the summary spline curve can result in modifications to the animation spline curves.

主权项

1. A method of constructing a summary spline curve from a plurality of animation spline curves, the method comprising:
receiving the plurality of animation spline curves, each animation spline curve associated with a plurality of control points, each animation spline curve representing a characteristic of an object at a plurality of frames in a computer animation; determining a combined set of control points comprising control points associated with the plurality of animation spline curves; for each pair of neighboring control points in the combined set of control points:
for each animation spline curve in the plurality of animation spline curves:
determining a spline curve segment between the neighboring control points; andnormalizing the spline curve segment to determine a normalized spline curve segment for the animation spline curve; andaveraging the normalized spline curve segments for each of the animation spline curves to determine a summary spline curve segment for the pair of neighboring control points; and combining the summary spline curve segments for each pair of neighboring control points to determine a summary spline curve.