public interface Trackable
AugmentedFace
|
Describes a face detected by ARCore and provides methods to access additional center and face region poses as well as face mesh related data. |
AugmentedImage
|
Describes the current best knowledge of a real-world augmented image. |
DepthPoint
|
On supported devices, represents a depth image based HitResult
returned by Frame.hitTest(float, float)
. |
Earth
|
A Trackable
implementation representing the Earth. |
InstantPlacementPoint
|
Trackable Instant Placement point returned by Frame.hitTestInstantPlacement(float, float, float)
. |
Plane
|
Describes the current best knowledge of a real-world planar surface. |
Point
|
Represents a point in space that ARCore is tracking. |
StreetscapeGeometry
|
Defines geometry such as terrain, buildings, or other structures obtained from the Streetscape Geometry API. |
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 that is attached to this trackable, using the given initial pose in the world
coordinate space.
|
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)
createAnchor
public abstract Anchor createAnchor ( Pose pose )
Creates an anchor that is attached to this trackable, using the given initial pose in the world coordinate space. 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.
pose
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 Collection < Anchor > getAnchors ()
getAnchors
public abstract Collection < Anchor > getAnchors ()
Gets the Anchors attached to this trackable.
public abstract TrackingState getTrackingState ()
getTrackingState
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.
