API Reference > imodeljs-common > Geometry > VerticalCRS > id id Readonly id: "GEOID" | "ELLIPSOID" | "NGVD29" | "NAVD88" Vertical CRS Key name. The only supported values are currently "GEOID", "ELLIPSOID", "NAVD88" and "NGVD29". The default is ELLIPSOID Defined in core/common/src/geometry/CoordinateReferenceSystem.ts Line 300 Last Updated: 11 June, 2024