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# VNHumanBodyPose3DObservation

An observation that provides the 3D body points the request recognizes.

```
class VNHumanBodyPose3DObservation
```

## Topics

### Accessing Points

[`availableJointNames`](/documentation/Vision/VNHumanBodyPose3DObservation/availableJointNames)

The names of the available joints in the observation.

[`VNHumanBodyPose3DObservation.JointName`](/documentation/Vision/VNHumanBodyPose3DObservation/JointName)

The joint names for a 3D body pose.

[`availableJointsGroupNames`](/documentation/Vision/VNHumanBodyPose3DObservation/availableJointsGroupNames)

The available joint group names in the observation.

[`VNHumanBodyPose3DObservation.JointsGroupName`](/documentation/Vision/VNHumanBodyPose3DObservation/JointsGroupName)

The joint group names for a 3D body pose.

[`recognizedPoint(_:)`](/documentation/Vision/VNHumanBodyPose3DObservation/recognizedPoint(_:))

Returns the point for a joint name that the observation recognizes.

[`recognizedPoints(_:)`](/documentation/Vision/VNHumanBodyPose3DObservation/recognizedPoints(_:))

Returns a collection of points for the group name you specify.

### Getting the Joint Position

[`pointInImage(_:)`](/documentation/Vision/VNHumanBodyPose3DObservation/pointInImage(_:))

Returns a 2D point for the joint name you specify, relative to the input image.

### Getting the Parent Joint Name

[`parentJointName(_:)`](/documentation/Vision/VNHumanBodyPose3DObservation/parentJointName(_:))

Returns the parent joint of the joint name you specify.

### Getting the Body Height

[`heightEstimation`](/documentation/Vision/VNHumanBodyPose3DObservation/heightEstimation-swift.property)

The technique the framework uses to estimate body height.

[`VNHumanBodyPose3DObservation.HeightEstimation`](/documentation/Vision/VNHumanBodyPose3DObservation/HeightEstimation-swift.enum)

Constants that identify body height estimation techniques.

[`bodyHeight`](/documentation/Vision/VNHumanBodyPose3DObservation/bodyHeight)

The estimated human body height, in meters.

### Getting the Camera Position

[`cameraOriginMatrix`](/documentation/Vision/VNHumanBodyPose3DObservation/cameraOriginMatrix)

A transform from the skeleton hip to the camera.

[`cameraRelativePosition(_:)`](/documentation/Vision/VNHumanBodyPose3DObservation/cameraRelativePosition(_:))

Returns a position relative to the camera for the body joint you specify.

[`getCameraRelativePosition:forJointName:error:`](/documentation/Vision/VNHumanBodyPose3DObservation/getCameraRelativePosition:forJointName:error:)

Gets a position relative to the camera for the body joint you specify.


---

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