API Reference > geometry-core > Curve > LineString3d > normalIndices normalIndices AccessorReadOnly Return the (optional) array of normal indices. These Are only present during certain constructions such as faceting. get: GrowableFloat64Array | undefined Returns - GrowableFloat64Array | undefined Defined in core/geometry/src/curve/LineString3d.ts Line 123 Last Updated: 15 June, 2021