---
title: constellation
framework: vision
role: symbol
role_heading: Instance Property
path: vision/vndetectfacelandmarksrequest/constellation
---

# constellation

A variable that describes how a face landmarks request orders or enumerates the resulting features.

## Declaration

```swift
var constellation: VNRequestFaceLandmarksConstellation { get set }
```

## Discussion

Discussion Set this variable to one of the supported constellation types detailed in VNRequestFaceLandmarksConstellation. The default value is VNRequestFaceLandmarksConstellation.constellationNotDefined.

## See Also

### Locating Face Landmarks

- [VNRequestFaceLandmarksConstellation](vision/vnrequestfacelandmarksconstellation.md)