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Version: 3.4

class Provider

(Niantic.Lightship.AR.XRSubsystems.XRPersistentAnchorSubsystem.Provider)

Overview​

An abstract class to be implemented by providers of this subsystem.

    class Provider: SubsystemProvider< XRPersistentAnchorSubsystem > {
    public:
        // properties
    
        bool IsMockProvider;
        XRPersistentAnchorConfiguration CurrentConfiguration;

        // methods
    
        virtual abstract TrackableChanges<XRPersistentAnchor> GetChanges(
            XRPersistentAnchor defaultAnchor,
            Allocator allocator
        ) = 0;
    
        virtual abstract bool GetNetworkStatusUpdate(out XRPersistentAnchorNetworkRequestStatus[] statuses) = 0;
        virtual abstract bool GetLocalizationStatusUpdate(out XRPersistentAnchorLocalizationStatus[] statuses) = 0;
        virtual bool GetVpsSessionId(out string vpsSessionId);
        virtual bool TryAddAnchor(Pose pose, out XRPersistentAnchor anchor);
        virtual bool TryRemoveAnchor(TrackableId anchorId);
    
        virtual bool TryRestoreAnchor(
            XRPersistentAnchorPayload anchorPayload,
            out XRPersistentAnchor anchor
        );
    
        virtual bool TryLocalize(
            XRPersistentAnchorPayload anchorPayload,
            out XRPersistentAnchor anchor
        );
    };

Detailed Documentation​

An abstract class to be implemented by providers of this subsystem.

Properties​

CurrentConfiguration​

XRPersistentAnchorConfiguration CurrentConfiguration

Get or set configuration with <name>XRPersistentAnchorConfiguration</name>

Methods​

GetChanges​

virtual abstract TrackableChanges<XRPersistentAnchor> GetChanges(
        XRPersistentAnchor defaultAnchor,
        Allocator allocator
    ) = 0

Invoked to get the changes to anchors (added, updated, and removed) since the last call to GetChanges(XRPersistentAnchor,Allocator).

    Parameters:

    defaultAnchor - The default anchor. This should be used to initialize the returned NativeArrays for backwards compatibility. See Allocator.

    allocator - An allocator to use for the NativeArrays in TrackableChanges<T>.

    Returns:

    Changes since the last call to GetChanges.

GetNetworkStatusUpdate​

virtual abstract bool GetNetworkStatusUpdate(out XRPersistentAnchorNetworkRequestStatus[] statuses) = 0

Get a list of network status updates, if any

    Returns:

    True if an update is present, false otherwise

GetLocalizationStatusUpdate​

virtual abstract bool GetLocalizationStatusUpdate(out XRPersistentAnchorLocalizationStatus[] statuses) = 0

Get a list of localization status updates, if any

    Returns:

    True if an update is present, false otherwise

GetVpsSessionId​

virtual bool GetVpsSessionId(out string vpsSessionId)

Get the vps session id, if any

    Parameters:

    vpsSessionId - The vps session id as 32 character hexidecimal upper-case string.

    Returns:

    True if vps session id is present, false otherwise

TryAddAnchor​

virtual bool TryAddAnchor(Pose pose, out XRPersistentAnchor anchor)

Should create a new anchor with the provided pose.

    Parameters:

    pose - The pose, in session space, of the new anchor.

    anchor - The new anchor. Must be valid only if this method returns true.

    Returns:

    Should return true if the new anchor was added, otherwise false.

TryRemoveAnchor​

virtual bool TryRemoveAnchor(TrackableId anchorId)

Should remove an existing anchor with TrackableId anchorId.

    Parameters:

    anchorId - The id of an existing anchor to remove.

    Returns:

    Should return true if the anchor was removed, otherwise false. If the anchor does not exist, return false.

TryRestoreAnchor​

virtual bool TryRestoreAnchor(
        XRPersistentAnchorPayload anchorPayload,
        out XRPersistentAnchor anchor
    )

Tries to restore an anchor

    Parameters:

    anchorPayload - The payload to restore the anchor with

    anchor - The restored anchor

    Returns:

    Whether or not the restoration was successful