/// <summary>
/// Creates multiple ARImageVisualizers and adds it to a reference list.
/// </summary>
/// <param name="_imagesToVisualize">List of AugmentedImages to visualize</param>
void CreateVisualizerObjects(List <AugmentedImage> _imagesToVisualize)
{
foreach (AugmentedImage image in _imagesToVisualize)
{
//Create an anchor at centre of image to ensure that transformation is relative to real world
Anchor anchor = image.CreateAnchor(image.CenterPose);
//Only continue if anchor is legit
if (anchor != null)
{
//Get instance of visualizer from object pool
ARImageVisualiser visualizer = ObjectPool.GetExisting <ARImageVisualiser>();
//Set parent of visualizer to anchor
visualizer.transform.SetParent(anchor.transform);
//Set image of visualizer
visualizer.m_image = image;
//Set visualizer to active
visualizer.gameObject.SetActive(true);
//Add visualizer to list
m_listOfVisualizedObjects.Add(visualizer);
//Set anchor to self-destruct
Destroy(anchor, 0.2f);
}
}
}
/// <summary>
/// When Images are tracked and added into the list, a visualiser will then be set on top of them
/// </summary>
public void SetVisualisersOnImages()
{
foreach (var _image in m_TempAugmentedImagesList)
{
// Get visualiser from image in list and store it
ARImageVisualiser m_visualiser = null;
m_visualiser = GetVisualiser(_image, m_visualiser);
// if there is no visualiser for that image and it is tracked, add one
if (m_visualiser == null && _image.TrackingState == TrackingState.Tracking)
{
AddVisualiser(_image);
}
else if (_image.TrackingState != TrackingState.Tracking && m_visualiser != null)
{
//m_trackingStateDebug.text = "Count of Dictionary: " + m_Visualizers.Count;
RemoveVisualiser(_image, m_visualiser);
//m_trackingStateDebug2.text = "Count of Dictionary: " + m_Visualizers.Count;
}
//m_debuggingText.text = "prev index: " + m_prevIndex;
if (_image.DatabaseIndex == m_prevIndex)
{
continue;
}
// remove the visualiser
//RemoveVisualiser(_image, m_visualiser);
// remove images from list -> trackable images are still there
m_trackingStateDebug.text = "Before Count of imagelist: " + m_TempAugmentedImagesList.Count;
m_TempAugmentedImagesList.RemoveAt(_image.DatabaseIndex);
m_trackingStateDebug2.text = "After Count of imagelist: " + m_TempAugmentedImagesList.Count;
}
}
/// <summary>
/// Add Visualiser and anchors for updated augmented images that are tracking and do not previously have a visualizer
/// </summary>
public void AddVisualiser(AugmentedImage _imageToAddTo)
{
// Create an anchor at centre of image to ensure that transformation is relative to real world
Anchor anchor = _imageToAddTo.CreateAnchor(_imageToAddTo.CenterPose);
// Create new visualiser and set as anchor's child ( so to keep the visualiser in that place )
ARImageVisualiser visualizer = Instantiate(AugmentedImageVisualizerPrefab, anchor.transform) as ARImageVisualiser;
// Set image of visualiser to be image that is tracked
visualizer.m_image = _imageToAddTo;
//m_prevIndex = _imageToAddTo.DatabaseIndex;
// Add to Dictionary
m_Visualizers.Add(_imageToAddTo.DatabaseIndex, visualizer);
}
private void Start()
{
//Get current session from session manager
m_arSession = ARSessionManager.Instance.GetSession();
//Initialise lists
m_trackedImages = new List <AugmentedImage>();
m_listOfVisualizedObjects = new List <ARImageVisualiser>();
//Set screen to never timeout
Screen.sleepTimeout = SleepTimeout.NeverSleep;
//Create Object Pool for ARImageVisualiser
for (int i = 0; i < m_objectPoolStartSize; i++)
{
//Create instance of visualizer
GameObject visualizerObject = Instantiate(m_arVisualizerPrefab);
visualizerObject.SetActive(false);
//Get component
ARImageVisualiser visualizer = visualizerObject.GetComponent <ARImageVisualiser>();
//Add to object pool
ObjectPool.Add(visualizer);
}
}
/// <summary>
/// Get the visualiser of the Image in list
/// </summary>
public ARImageVisualiser GetVisualiser(AugmentedImage _imageTracked, ARImageVisualiser _addVisualiser)
{
m_Visualizers.TryGetValue(_imageTracked.DatabaseIndex, out _addVisualiser);
return(_addVisualiser);
}
/// <summary>
/// Remove a Visualiser from an image if it stops updating
/// </summary>
public void RemoveVisualiser(AugmentedImage _imageToRemoveFrom, ARImageVisualiser _visualiserToRemove)
{
// Remove Visualiser from image and Destroys it
Destroy(m_Visualizers[_imageToRemoveFrom.DatabaseIndex].gameObject);
m_Visualizers.Remove(_imageToRemoveFrom.DatabaseIndex);
}
