---
title: VNRequestFaceLandmarksConstellation.constellationNotDefined
framework: vision
role: symbol
role_heading: Case
path: vision/vnrequestfacelandmarksconstellation/constellationnotdefined
---

# VNRequestFaceLandmarksConstellation.constellationNotDefined

An undefined constellation.

## Declaration

```swift
case constellationNotDefined
```

## See Also

### Types of Constellations

- [VNRequestFaceLandmarksConstellation.constellation65Points](vision/vnrequestfacelandmarksconstellation/constellation65points.md)
- [VNRequestFaceLandmarksConstellation.constellation76Points](vision/vnrequestfacelandmarksconstellation/constellation76points.md)