| Known Indirect Subclasses |
A Trackable is something that ARCore can track and that Anchors can be attached to.
Public Methods
| abstract Anchor |
createAnchor(Pose pose)
Creates an anchor at the given pose in the world coordinate space that is attached to this
trackable.
|
| abstract Collection<Anchor> |
getAnchors()
Gets the Anchors attached to this trackable.
|
| abstract TrackingState |
getTrackingState()
Gets the TrackingState of this Trackable.
|
Public Methods
public abstract Anchor createAnchor (Pose pose)
Creates an anchor at the given pose in the world coordinate space that is attached to this trackable. The type of trackable will determine the semantics of attachment and how the anchor's pose will be updated to maintain this relationship. Note that the relative offset between the pose of multiple anchors attached to a trackable may adjust slightly over time as ARCore updates its model of the world.
Parameters
| pose |
|---|
Throws
| NotTrackingException | if the trackable's tracking state
was not TrackingState.TRACKING |
|---|---|
| SessionPausedException | if the session had been paused. |
| ResourceExhaustedException | if too many anchors exist. |
| IllegalStateException | if this trackable doesn't support anchors. |
public abstract TrackingState getTrackingState ()
Gets the TrackingState of this Trackable.
Note: Starting in ARCore 1.12, changing the active camera config using Session.setCameraConfig(CameraConfig) may cause the tracking state on certain devices to
become permanently PAUSED. For consistent behavior across all supported devices, release any
previously created trackables when setting a new camera config.