# init(x:y:z:) Creates a 3D point mark that plots values to x, y and z. ``` nonisolated init(x: PlottableValue, y: PlottableValue, z: PlottableValue) ``` ## Parameters `x` The x position. `y` The y position. `z` The z position. ## Discussion> Important: A 3D PointMark requires exactly three numeric points. Use this initializer to plot one property with each of the x, y and z axes: ```swift Chart3D(data) { PointMark( x: .value("Wing Length", $0.wingLength), y: .value("Wing Width", $0.wingWidth), z: .value("Weight", $0.weight) ) } ``` --- 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)