Bezier.tangent_at

Bezier.tangent_at(t)

Compute the tangent vector to the curve at the point at the given parameter.

Parameters:

tfloat

The value of the curve parameter. Must be between 0 and 1.

Returns:

compas.geometry.Vector

The corresponding tangent vector.

See also

compas.geometry.Bezier.point_at(), compas.geometry.Bezier.normal_at()

Examples

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