Bezier.tangent

Bezier.tangent(t)

Compute the tangent vector at a point on the curve.

Parameters

t (float) – The value of the curve parameter. Must be between 0 and 1.

Returns

Vector – The corresponding tangent vector.

Examples

>>> curve = Bezier([[0.0, 0.0, 0.0], [0.5, 1.0, 0.0], [1.0, 0.0, 0.0]])
>>> curve.tangent(0.5)
Vector(1.000, 0.000, 0.000)