API Reference > geometry-core > Numerics > SmallSystem > lineSegment3dXYClosestPointUnbounded lineSegment3dXYClosestPointUnbounded MethodStatic Return the line fraction at which the line is closest to a space point as viewed in xy only. lineSegment3dXYClosestPointUnbounded(pointA0: XAndY, pointA1: XAndY, spacePoint: XAndY): number | undefined Parameter Type Description pointA0 XAndY start point pointA1 XAndY end point spacePoint XAndY homogeneous point in space Returns - number | undefined Defined in core/geometry/src/numerics/Polynomials.ts Line 1496 Last Updated: 13 June, 2024