Suppose a cubic Bézier polynomial is placed through (u0, v0) and (u3, v3) with guide points (u1,
Question:
a. Derive the parametric equations for u(t) and v(t) assuming that
u(0) = u0, u(1) = u3, u'(0) = u1 − u0, u'(1) = u3 − u2
and
v(0) = v0, v(1) = v3, v'(0) = v1 − v0, v'(1) = v3 − v2.
b. Let f (i/3) = ui , for i = 0, 1, 2, 3 and g(i/3) = vi , for i = 0, 1, 2, 3. Show that the Bernstein polynomial of degree 3 in t for f is u(t) and the Bernstein polynomial of degree three in t for g is v(t).
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