---
title: ARPlaneClassificationStatusUnknown
framework: arkit
role: symbol
role_heading: Enumeration Case
path: arkit/arplaneclassificationstatus/arplaneclassificationstatusunknown
---

# ARPlaneClassificationStatusUnknown

ARKit has completed its classification process for the plane anchor, but the result is inconclusive.

## Declaration

```occ
ARPlaneClassificationStatusUnknown
```

## Discussion

Discussion ARKit attempts to classify detected planes using a finite set of common categories. However, a detected plane may not be a real object fitting any of those categories, or the plane classification process may not be able to recognize it. In such cases, the plane anchor’s classification is ARPlaneClassificationNone and its classificationStatus is ARPlaneClassificationStatusUnknown.

## See Also

### Classification Status

- [ARPlaneClassificationStatusNotAvailable](arkit/arplaneclassificationstatus/arplaneclassificationstatusnotavailable.md)
- [ARPlaneClassificationStatusUndetermined](arkit/arplaneclassificationstatus/arplaneclassificationstatusundetermined.md)
- [ARPlaneClassificationStatusKnown](arkit/arplaneclassificationstatus/arplaneclassificationstatusknown.md)