---
title: maximumObservations
framework: vision
role: symbol
role_heading: Instance Property
path: vision/detectrectanglesrequest/maximumobservations
---

# maximumObservations

The maximum number of rectangles the request returns.

## Declaration

```swift
var maximumObservations: Int
```

## Discussion

Discussion The property’s default value is 1. Setting this property to 0 will return a potentially unlimited number of observations.

## See Also

### Configuring a request

- [maximumAspectRatio](vision/detectrectanglesrequest/maximumaspectratio.md)
- [minimumAspectRatio](vision/detectrectanglesrequest/minimumaspectratio.md)
- [minimumConfidence](vision/detectrectanglesrequest/minimumconfidence.md)
- [minimumSize](vision/detectrectanglesrequest/minimumsize.md)
- [quadratureToleranceDegrees](vision/detectrectanglesrequest/quadraturetolerancedegrees.md)