The attributes bezier_curve<-control1
and bezier_curve<-control2
define the Bezier curve's control-points. If bezier_curve<-control2
= @nil, the
curve has only a single control-point and is known as a quadratic
Bezier curve. If the second control point is specified, it is known as a cubic
Bezier curve.
The curve departs from bezier_curve<-start
in the direction of bezier_curve<-control1
and ends in bezier_curve<-end from the
direction of bezier_curve<-control2
(or
bezier_curve<-control1
if bezier_curve<-control2
is @nil.
Unlike class path, the
curve does not go through its control-points.
