PVector toroidPoint = pointOnToroidalAxis(t);
// The rotated point represents the middle of the girth of
// the helix. Figure out if the current point is inside that
// region.
float d = PVector.dist(p, toroidPoint);
PVector toroidPoint = pointOnToroidalAxis(t);
// The rotated point represents the middle of the girth of
// the helix. Figure out if the current point is inside that
// region.
float d = PVector.dist(p, toroidPoint);