API Reference > geometry-core > Numerics > SmallSystem > lineSegment3dHXYClosestPointUnbounded lineSegment3dHXYClosestPointUnbounded MethodStatic Return the line fraction at which the (homogeneous) line is closest to a space point as viewed in xy only. lineSegment3dHXYClosestPointUnbounded(hA0: Point4d, hA1: Point4d, spacePoint: Point4d): undefined | number Parameter Type Description hA0 Point4d homogeneous start point of line a hA1 Point4d homogeneous end point of line a spacePoint Point4d homogeneous point in space Returns - undefined | number Defined in numerics/Polynomials.ts Line 1519 Last Updated: 12 June, 2024