/// <summary>
/// Gets the tracked image anchor by name.
/// </summary>
/// <returns>The tracked image anchor.</returns>
/// <param name="imageAnchorName">Image anchor name.</param>
public GameObject GetTrackedImageAnchorByName(string imageAnchorName)
{
if (arInterface != null)
{
return(arInterface.GetTrackedImageAnchorByName(imageAnchorName));
}
return(null);
}
/// <summary>
/// Gets the image anchor name that is nearest to the AR-camera.
/// </summary>
/// <returns>The name of the found image anchor, or empty string.</returns>
public string GetNearestImageAnchorName()
{
if (arInterface != null)
{
Camera mainCamera = arInterface.GetMainCamera();
List <string> alAnchorNames = GetTrackedImageAnchorNames();
if (mainCamera != null && alAnchorNames != null)
{
Vector3 cameraPos = mainCamera.transform.position;
float minDistance = float.MaxValue;
int foundAnchorIndex = -1;
for (int i = 0; i < alAnchorNames.Count; i++)
{
string anchorName = alAnchorNames[i];
GameObject anchorObj = arInterface.GetTrackedImageAnchorByName(anchorName);
if (anchorObj != null)
{
Vector3 anchorPos = anchorObj.transform.position;
float camToAnchorDist2 = (anchorPos - cameraPos).sqrMagnitude;
if (camToAnchorDist2 < minDistance)
{
minDistance = camToAnchorDist2;
foundAnchorIndex = i;
}
}
}
return(foundAnchorIndex >= 0 ? alAnchorNames[foundAnchorIndex] : string.Empty);
}
}
return(string.Empty);
}