# lineSubtraction(_:eoFill:) Returns a new shape with a line from this shape that does not overlap the filled region of the given shape. ``` @export(implementation) nonisolated func lineSubtraction(_ other: T, eoFill: Bool = false) -> some Shape where T : Shape ``` ## Parameters `other` The shape to subtract. `eoFill` Whether to use the even-odd rule for determining which areas to treat as the interior of the shapes (if true), or the non-zero rule (if false). ## Return Value A new shape. ## Discussion The line of the resulting shape is the line of this shape that does not overlap the filled region of `other`. Intersected subpaths that are clipped create open subpaths. Closed subpaths that do not intersect `other` remain closed. --- 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)