API Reference > geometry-core > Serialization > BGFBAccessors > BGFBAccessors.TransitionSpiralDetail > transform transform Method transform(obj?: BGFBAccessors.DTransform3d): | BGFBAccessors.DTransform3d Parameter Type Description obj BGFBAccessors.DTransform3d Returns - | BGFBAccessors.DTransform3d DTransform3d|null Defined in serialization/BGFBAccessors.ts Line 5628 Last Updated: 12 June, 2024