API Reference > geometry-core > Polyface > PolyfaceData > reverseIndicesSingleFacet reverseIndicesSingleFacet MethodStatic Reverse data in entire facet indexing arrays. parameterized over type T so non-number data -- e.g. boolean visibility flags -- can be reversed. reverseIndicesSingleFacet<T>(facetId: number, facetStartIndex: number[], indices: undefined | T[], preserveStart: boolean): boolean Parameter Type Description facetId number facetStartIndex number[] indices undefined | T[] preserveStart boolean Returns - boolean Defined in polyface/PolyfaceData.ts Line 479 Last Updated: 12 June, 2024