# metadataOutputRectConverted(fromOutputRect:) Converts a rectangle in the capture output object’s coordinate system to one in the coordinate system used for metadata outputs. ``` func metadataOutputRectConverted(fromOutputRect rectInOutputCoordinates: CGRect) -> CGRect ``` ## Parameters `rectInOutputCoordinates` A rectangle in the [`AVCaptureOutput`](/documentation/AVFoundation/AVCaptureOutput) object’s coordinate system. ## Return Value A rectangle in the [`AVCaptureMetadataOutput`](/documentation/AVFoundation/AVCaptureMetadataOutput) coordinate system. ## Discussion An [`AVCaptureMetadataOutput`](/documentation/AVFoundation/AVCaptureMetadataOutput) object expresses its [`rectOfInterest`](/documentation/AVFoundation/AVCaptureMetadataOutput/rectOfInterest) as a where 0,0 represents the top-left of the picture area, and 1,1 represents the bottom-right on an unrotated picture. This convenience method converts a rectangle in the coordinate space of the output to a rectangle of interest in the coordinate space of a metadata output whose capture device provides input to the output. The conversion takes orientation, mirroring, and scaling into consideration. See [`transformedMetadataObject(for:connection:)`](/documentation/AVFoundation/AVCaptureOutput/transformedMetadataObject(for:connection:)) for a full discussion of how the system applies orientation and mirroring to sample buffers passing through the output. --- 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)