---
title: "init(detectedRectangle:_:frameAnalysisSpacing:)"
framework: vision
role: symbol
role_heading: Initializer
path: "vision/trackrectanglerequest/init(detectedrectangle:_:frameanalysisspacing:)"
---

# init(detectedRectangle:_:frameAnalysisSpacing:)

Creates a rectangle tracking request.

## Declaration

```swift
init(detectedRectangle: any QuadrilateralProviding & VisionObservation, _ revision: TrackRectangleRequest.Revision? = nil, frameAnalysisSpacing: CMTime? = nil)
```