←API Reference ←SwiftyNsdk

VpsAnchorUpdate

Contains the latest tracking information for a VPS anchor....

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Declaration

struct VpsAnchorUpdate

Summary

Contains the latest tracking information for a VPS anchor. Anchor updates are retrieved via getAnchorUpdate(anchorId:) and provide the most current information about an anchor's position, orientation, and tracking status. This is a snapshot of the anchor, and the latest anchor update should be used every frame.

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Properties

Name	Type	Summary
var anchorId	NsdkVpsAnchorId	The unique identifier of the anchor.
var anchorToLocalTransform	simd_float4x4?	The 4x4 transformation matrix from anchor space to local tracking space. This matrix represents the anchor's position and orientation relative to the device's current local coordinate system. Use this for placing AR content relative to the anchor.
var description	String	A textual representation of this instance. Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the String(describing:) initializer. This initializer works with any type, and uses the custom description property for types that conform to CustomStringConvertible: struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "(\(x), \(y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)" The conversion of p to a string in the assignment to s uses the Point type's description property.
var timestampMs	UInt64?	Timestamp when this update was generated (in milliseconds since epoch).
var trackingConfidence	Float?	Confidence score for the current tracking estimate. A value between 0.0 and 1.0 indicating the reliability of the pose estimate. Higher values indicate more reliable tracking.
var trackingState	AnchorTrackingState	The current tracking state of the anchor. Indicates whether the anchor is being tracked and how reliable the pose data is. See AnchorTrackingState for detailed information about each state.
var trackingStateReason	AnchorTrackingStateReason	Additional context about the tracking state.

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Nested Types

Enums

Name	Type	Summary
AnchorTrackingState	AnchorTrackingState	Represents the current tracking state of a VPS anchor. The tracking state indicates how well the system is able to track an anchor's position and orientation in the current environment.
AnchorTrackingStateReason	AnchorTrackingStateReason	Provides additional context about why an anchor is in either the NotTracked or Limited tracking states.

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Relationships

conforms to: Swift.CustomStringConvertible