# MarkDimensions ``` struct MarkDimensions ``` ## Topics ### Initializers [`init(floatLiteral: Double)`](/documentation/Charts/MarkDimensions/init(floatLiteral:)) Creates a constant width or height from a floating point value. [`init(integerLiteral: Int)`](/documentation/Charts/MarkDimensions/init(integerLiteral:)) Creates a constant width or height from an integer. ### Type Properties [`static var automatic: MarkDimensions`](/documentation/Charts/MarkDimensions/automatic) A dimension that determines its value automatically. ### Type Methods [`static func fixed(CGFloat) -> MarkDimensions`](/documentation/Charts/MarkDimensions/fixed(_:)-14cur) A constant dimension. [`static func fixed(KeyPath) -> MarkDimensions`](/documentation/Charts/MarkDimensions/fixed(_:)-7k7pv) A constant dimension. [`static func inset(KeyPath) -> MarkDimensions`](/documentation/Charts/MarkDimensions/inset(_:)-309e3) A dimension that’s the step size minus the specified inset value on each side. [`static func inset(CGFloat) -> MarkDimensions`](/documentation/Charts/MarkDimensions/inset(_:)-5nddx) A dimension that’s the step size minus the specified inset value on each side. [`static func ratio(CGFloat) -> MarkDimensions`](/documentation/Charts/MarkDimensions/ratio(_:)-8ufgm) A dimension that’s proportional to the scale step size, using the specified ratio. [`static func ratio(KeyPath) -> MarkDimensions`](/documentation/Charts/MarkDimensions/ratio(_:)-r23h) A dimension that’s proportional to the scale step size, using the specified ratio. ## Relationships ### Conforms To [`ExpressibleByIntegerLiteral`](/documentation/Swift/ExpressibleByIntegerLiteral) [`ExpressibleByFloatLiteral`](/documentation/Swift/ExpressibleByFloatLiteral) --- 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)