pub fn parameter_at_arc_length2(
curve: &Curve2,
from: Scalar,
length: Scalar,
) -> GeomResult<Scalar>Expand description
The parameter at signed arc length length from parameter from along
a 2D curve: in increasing parameter for a positive length, decreasing
for a negative one.
Refuses by name a length past the end of a bounded curve, a from
outside its domain, and non-finite input. See the
module documentation for the tolerance.