// Method for unloading active data sets once user exits the scene. This is to prevent
// presence of multiple copies of same data sets when re-entering scene.
public void UnloadActiveDataSets()
{
ObjectTracker objectTracker = TrackerManager.Instance.GetTracker <ObjectTracker>();
System.Collections.ObjectModel.ReadOnlyCollection <DataSet> activeDataSets = objectTracker.GetActiveDataSets().ToReadOnlyCollection();
for (int i = 0; i < activeDataSets.Count; i++)
{
DataSet currDataSet = activeDataSets[i];
StateManager stateManager = TrackerManager.Instance.GetStateManager();
List <TrackableBehaviour> tbs = (List <TrackableBehaviour>)TrackerManager.Instance.GetStateManager().GetTrackableBehaviours();
for (int j = 0; j < tbs.Count; j++)
{
if (activeDataSets[i].Contains(tbs[j].Trackable))
{
stateManager.DestroyTrackableBehavioursForTrackable(tbs[j].Trackable, true);
}
}
if (!objectTracker.DeactivateDataSet(currDataSet))
{
Debug.Log("Could not deactive data set!");
}
if (!objectTracker.DestroyDataSet(currDataSet, false))
{
Debug.Log("Could not destroy data set!");
}
}
}
/// <summary>
/// 关闭指定识别数据集
/// </summary>
/// <param name="datasetName">数据集名称或绝对路径</param>
public static void DeactivateDateset(string datasetName)
{
ObjectTracker objectTracker = TrackerManager.Instance.GetTracker <ObjectTracker>();
IEnumerable <DataSet> activeDataSets = objectTracker.GetActiveDataSets();
List <DataSet> activeDataSetsToBeRemoved = activeDataSets.ToList();
List <DataSet> dataSetsToBeActive = new List <DataSet>();
foreach (DataSet ads in activeDataSetsToBeRemoved)
{
objectTracker.DeactivateDataSet(ads);
if (!ads.Path.Contains(datasetName))
{
dataSetsToBeActive.Add(ads);
}
else
{
objectTracker.DestroyDataSet(ads, false);
var trackables = ads.GetTrackables();
foreach (var item in trackables)
{
TrackerManager.Instance.GetStateManager().DestroyTrackableBehavioursForTrackable(item, true);
}
}
}
objectTracker.Stop();
foreach (DataSet ds in dataSetsToBeActive)
{
objectTracker.ActivateDataSet(ds);
}
objectTracker.Start();
}
void UnloadDataSet()
{
ObjectTracker tracker = TrackerManager.Instance.GetTracker <ObjectTracker> ();
if (tracker != null)
{
tracker.Stop();
}
List <DataSet> activeDataSets = tracker.GetActiveDataSets().ToList();
if (activeDataSets.Count > 0)
{
DataSet ds = activeDataSets.ElementAt(0);
IEnumerable <Trackable> tbs = ds.GetTrackables();
StateManager stateManager = TrackerManager.Instance.GetStateManager();
tracker.DeactivateDataSet(ds);
foreach (Trackable tb in tbs)
{
Debug.Log(tb.Name);
stateManager.DestroyTrackableBehavioursForTrackable(tb, false);
GameObject ob = GameObject.Find("DynamicImageTarget-" + tb.Name);
if (ob != null)
{
Debug.Log(tb.Name);
ob.SetActive(false);
Destroy(ob);
}
}
tracker.DestroyDataSet(ds, false);
Resources.UnloadUnusedAssets();
}
tracker.Start();
List <DataSet> dataSets = tracker.GetDataSets().ToList();
if (dataSets.Count > 0)
{
foreach (var dataset in dataSets)
{
Debug.Log("datasetName------" + GetDataSetName(dataset));
}
}
}