# init(name:duration:axis:startTransform:spinClockwise:orientToPath:rotationCount:bindTarget:blendLayer:repeatMode:fillMode:isAdditive:trimStart:trimEnd:trimDuration:offset:delay:speed:) Creates an animation that revolves an entity around its origin. ``` init(name: String = "", duration: TimeInterval = 1.0, axis: SIMD3 = .init(x: 0.0, y: 1.0, z: 0.0), startTransform: Transform = .identity, spinClockwise: Bool = true, orientToPath: Bool = false, rotationCount: Float = 1.0, bindTarget: BindTarget? = nil, blendLayer: Int32 = 0, repeatMode: AnimationRepeatMode = .none, fillMode: AnimationFillMode = [], isAdditive: Bool = false, trimStart: TimeInterval? = nil, trimEnd: TimeInterval? = nil, trimDuration: TimeInterval? = nil, offset: TimeInterval = 0, delay: TimeInterval = 0, speed: Float = 1) ``` ## Parameters `name` A textual name for the animation. `duration` The elapsed time for one complete rotation. `axis` A 3D vector that points in the direction of the axis around which to rotate. `startTransform` The orbiting entity’s beginning position. `spinClockwise` A Boolean value that indicates whether the object orbits the center point in the clockwise direction. `orientToPath` A Boolean value that indicates whether the orbiting object updates its orientation during the animation to orient itself along the rotation path. `rotationCount` The number of times to rotate the target entity before stopping. `bindTarget` A textual name that identifies the particular property that animates. `blendLayer` The order in which the framework composites the animation into the view. `repeatMode` An option that determines how the animation repeats. `fillMode` The playback behavior outside of the normal duration. `isAdditive` A Boolean value that indicates whether the animation builds on the current state of the target entity or resets the state before running. `trimStart` The optional time, in seconds, at which the animation plays. `trimEnd` The optional time, in seconds, at which the animation stops. `trimDuration` An optional duration that overrides the calculated duration. `offset` The time, in seconds, at which the animation begins within the duration. `delay` An amount of time that lapses before the animation plays. `speed` A factor that changes the animation’s rate of playback. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)