# cgVector(for:) Returns a Core Graphics vector corresponding to the data in a given string. ``` class func cgVector(for string: String) -> CGVector ``` ## Parameters `string` A string whose contents are of the form “{*dx*, *dy*}”, where *dx* is the x-coordinate of the vector and *dy* is the y-coordinate. The *dx* and *dy* values can be integer or float values. An example of a valid string is @”{3.0,2.5}”. The string is not localized, so items are always separated with a comma. ## Return Value A Core Graphics structure that represents a two-dimensional vector. If the string is not well-formed, the function returns a vector whose dx and dy values are `0`. ## Discussion In general, you should use this function only to convert strings that were previously created using the [`string(for:)`](/documentation/Foundation/NSCoder/string(for:)-4omzv) function. --- 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)