Thomas Morley <thomasmorle...@gmail.com> writes: > Hi Aaron, > > thanks a lot for this. > I was aware of not going for the bezier-curve itself, but only for the > control-points was a raw approximation. > Yours is far better. > Mostly I did so for reasons of lacking knowledge of beziers, both the > math and how to compute them. > Now there is a fine tool-set available, many thanks again. > I tried to understand what you coded (not finished yet), but while > playing around with code I always think making it visible will help. > Thus the attached file and image. > One question I really couldn't answer is: > What kind of value is `t´ in (define (bezier-angle control-points t) ...) > Seems not to be a x- or y-value, not an arc-length-value .., but what > else?
"time". For t=0, you get the starting point, for t=1 you get the end point. For values in between, you get points in between. The starting direction is from starting point (control point 0) to control point 1 (which is not usually touched at all). Similarly the ending direction is from control point 2 to the end point (control point 3). -- David Kastrup _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user
