pub fn intrinsic_tangent(curve: &Intrinsic2, s: Scalar) -> GeomResult<Vec2>Expand description
Unit tangent of an intrinsic curve at arc length s.
Exact: this is the closed-form heading, no quadrature involved.
pub fn intrinsic_tangent(curve: &Intrinsic2, s: Scalar) -> GeomResult<Vec2>Unit tangent of an intrinsic curve at arc length s.
Exact: this is the closed-form heading, no quadrature involved.