API Reference > geometry-core > Serialization > IModelJson > IModelJson.RotationalSweepProps IModelJson.RotationalSweepProps Interface Interface for a rotational sweep of a base curve or region around an axis. Properties Name Type Description axis XYZProps The axis of rotation capped undefined | boolean flag for circular end caps. center XYZProps any point on the axis of rotation. contour IModelJson.CurveCollectionProps The swept curve or region. sweepAngle AngleProps sweep angle Defined in serialization/IModelJsonSchema.ts Line 285 Last Updated: 11 June, 2024