API Reference > geometry-core > CartesianGeometry > Vector3d > normalize normalize Method Return a unit vector parallel with this. Return undefined if this.magnitude is near zero. normalize(result?: Vector3d): Vector3d | undefined Parameter Type Description result Vector3d optional result. Returns - Vector3d | undefined Defined in core/geometry/src/geometry3d/Point3dVector3d.ts Line 737 Last Updated: 13 June, 2024