/// <summary>
/// This method only demonstrates how to handle extended tracking feature when you have multiple targets in the scene
/// So, this method could be removed otherwise
/// </summary>
private void StopExtendedTracking()
{
// If Extended Tracking is enabled, we first disable it for all the trackables
// and then enable it only for the newly created target
bool extTrackingEnabled = mTrackableSettings && mTrackableSettings.IsExtendedTrackingEnabled();
if (extTrackingEnabled)
{
StateManager stateManager = TrackerManager.Instance.GetStateManager();
// 1. Stop extended tracking on all the trackables
foreach (var tb in stateManager.GetTrackableBehaviours())
{
var itb = tb as ImageTargetBehaviour;
if (itb != null)
{
itb.ImageTarget.StopExtendedTracking();
}
}
// 2. Start Extended Tracking on the most recently added target
List <TrackableBehaviour> trackableList = stateManager.GetTrackableBehaviours().ToList();
ImageTargetBehaviour lastItb = trackableList [LastTargetIndex] as ImageTargetBehaviour;
if (lastItb != null)
{
if (lastItb.ImageTarget.StartExtendedTracking())
{
Debug.Log("Extended Tracking successfully enabled for " + lastItb.name);
}
}
}
}