API Reference > geometry-core > Polyface > PolyfaceBuilder > addFacetFromGrowableArrays addFacetFromGrowableArrays Method Add a polygon to the evolving facets. Add points to the polyface indices are added (in reverse order if indicated by the builder state) addFacetFromGrowableArrays(points: GrowableXYZArray, normals: GrowableXYZArray | undefined, params: GrowableXYArray | undefined, colors: number[] | undefined): void Parameter Type Description points GrowableXYZArray normals GrowableXYZArray | undefined array of points. This may contain extra points not to be used in the polygon params GrowableXYArray | undefined colors number[] | undefined Returns - void Defined in core/geometry/src/polyface/PolyfaceBuilder.ts Line 1368 Last Updated: 13 June, 2024