Rational Bezier Curve Applet
DIRECTIONS: In this applet, you create a rational
Bezier curve, described as
(Σ B_{i}^{n}(t)
λ_{i}p_{i})/ (Σ B_{i}^{n}(t)
λ_{i})
by placing control points p_{i} = (x_{i},y_{i})
on the screen, which are stored as points in space as (1,x_{i},y_{i}).
The weights λ_{i} are initially set as 1, and are
modified by using the A and Z keys. The A key decreases the weight
and the Z key increases the weight.


