5386     function getPointAtSegmentLength(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length) {  argument
5388             return bezlen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y);
5390             return findDotsAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y,
5391                 getTotLen(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, length));
5458     function findDotsAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {  argument
5464             x = t13 * p1x + t12 * 3 * t * c1x + t1 * 3 * t * t * c2x + t3 * p2x,
5468             nx = c1x + 2 * t * (c2x - c1x) + t2 * (p2x - 2 * c2x + c1x),
5472             cx = t1 * c2x + t * p2x,
5486     function bezierBBox(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y) {  argument
5488             p1x = [p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y];
6147     function findDotAtSegment(p1x, p1y, c1x, c1y, c2x, c2y, p2x, p2y, t) {  argument
6150             x: pow(t1, 3) * p1x + pow(t1, 2) * 3 * t * c1x + t1 * 3 * t * t * c2x + pow(t, 3) * p2x,