API Reference > geometry-core > Polyface > PolyfaceBuilder > addQuadFacet addQuadFacet Method Add a quad to the polyface given its points in order around the edges. Optionally provide params and the plane normal, otherwise they will be calculated without reference data. Optionally mark this quad as the last piece of a face in this polyface. addQuadFacet(points: Point3d[] | GrowableXYZArray, params?: Point2d[], normals?: Vector3d[]): void Parameter Type Description points Point3d[] | GrowableXYZArray params Point2d[] normals Vector3d[] Returns - void Defined in core/geometry/src/polyface/PolyfaceBuilder.ts Line 506 Last Updated: 13 June, 2024