API Reference > imodeljs-common > Serialization > EGFBAccessors > EGFBAccessors.ArcPrimitive > boundary boundary Method boundary(): EGFBAccessors.BoundaryType Returns - EGFBAccessors.BoundaryType BoundaryType Defined in core/common/src/geometry/ElementGeometryFB.ts Line 1045 Last Updated: 11 June, 2024