API Reference > geometry-core > ArraysAndInterfaces > IStrokeHandler > announcePointTangent announcePointTangent Method announce a single point with its fraction and tangent. (IMPORTANT) the same Point3d and Vector3d will be reset and passed on multiple calls. (THEREFORE) if the implementation is saving coordinates, it must copy the xyz data out into its own data structure rather than save the references. announcePointTangent(xyz: Point3d, fraction: number, tangent: Vector3d): void Parameter Type Description xyz Point3d fraction number tangent Vector3d Returns - void Defined in core/geometry/src/geometry3d/GeometryHandler.ts Line 276 Last Updated: 13 June, 2024