---
title: MLBoundingBoxCoordinatesOrigin
framework: createml
role: symbol
role_heading: Enumeration
path: createml/mlboundingboxcoordinatesorigin
---

# MLBoundingBoxCoordinatesOrigin

The location within an image that an annotation’s coordinates use as their origin.

## Declaration

```swift
enum MLBoundingBoxCoordinatesOrigin
```

## Topics

### Designating origins

- [MLBoundingBoxCoordinatesOrigin.topLeft](createml/mlboundingboxcoordinatesorigin/topleft.md)
- [MLBoundingBoxCoordinatesOrigin.bottomLeft](createml/mlboundingboxcoordinatesorigin/bottomleft.md)

## Relationships

### Conforms To

- [Equatable](swift/equatable.md)
- [Escapable](swift/escapable.md)
- [Hashable](swift/hashable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Bounding box annotations

- [MLObjectDetector.AnnotationType.boundingBox(units:origin:anchor:)](createml/mlobjectdetector/annotationtype/boundingbox(units:origin:anchor:).md)
- [MLBoundingBoxUnits](createml/mlboundingboxunits.md)
- [MLBoundingBoxAnchor](createml/mlboundingboxanchor.md)