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←API Reference ←NSDK ←NSDKVps2Session

trackAnchor

Declaration

func trackAnchor(payload: String) throws -> NSDKVpsAnchorId

Summary

Requests to start tracking an anchor specified by a payload.
A VPS payload contains all the data needed to localize at a VPS-activated location.
A default payload for a VPS-activated location can be obtained from the "blob" field
in the details view of an entry in the Geospatial Browser, or via
anchorPayload(anchorId:) for user-generated anchors.
The returned anchor ID is automatically polled each frame via update(), and updates
are published on anchorUpdated.

Returns

The unique identifier of the anchor encoded in the payload.

Throws

NSDKError.invalidArgument if the payload is not valid.

Parameters

Name	Type	Summary
payload	String	Base64-encoded anchor payload.

Method trackAnchor trackAnchor

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