// Load the underlying ARToolKit marker structure(s) and set the UID.
public void Load()
{
lock (loadLock) {
if (UID != NO_ID)
{
return;
}
if (!PluginFunctions.inited)
{
// If arwInitialiseAR() has not yet been called, we can't load the native trackable yet.
// ARController.InitialiseAR() will call this again when arwInitialiseAR() has been called.
return;
}
// Work out the configuration string to pass to ARToolKit.
string assetDirectory = Application.streamingAssetsPath;
string configuration = string.Empty;
string path = string.Empty;
switch (Type)
{
case TrackableType.TwoD:
if (string.IsNullOrEmpty(TwoDImageName))
{
ARController.Log(string.Format(LOAD_FAILURE, "2D image trackable due to no TwoDImageName"));
return;
}
path = Path.Combine(TWOD_FORMAT, TwoDImageName);
if (!ARUtilityFunctions.GetFileFromStreamingAssets(path, out assetDirectory))
{
ARController.Log(string.Format(LOAD_FAILURE, TwoDImageName));
return;
}
if (!string.IsNullOrEmpty(assetDirectory))
{
configuration = string.Format(TWOD_CONFIG, assetDirectory, TwoDImageHeight * ARTOOLKIT_TO_UNITY);
}
break;
case TrackableType.Square:
// Multiply width by 1000 to convert from metres to ARToolKit's millimetres.
configuration = string.Format(SINGLE_BUFFER_CONFIG, PatternWidth * ARTOOLKIT_TO_UNITY, PatternContents);
break;
case TrackableType.SquareBarcode:
// Multiply width by 1000 to convert from metres to ARToolKit's millimetres.
configuration = string.Format(SINGLE_BARCODE_CONFIG, BarcodeID, PatternWidth * ARTOOLKIT_TO_UNITY);
break;
case TrackableType.Multimarker:
if (string.IsNullOrEmpty(MultiConfigFile))
{
ARController.Log(string.Format(LOAD_FAILURE, "multimarker due to no MultiConfigFile"));
return;
}
path = Path.Combine(MULTI_FORMAT, MultiConfigFile + MULTI_EXT);
ARUtilityFunctions.GetFileFromStreamingAssets(path, out assetDirectory);
if (!string.IsNullOrEmpty(assetDirectory))
{
configuration = string.Format(MULTI_CONFIG, assetDirectory);
}
break;
default:
// Unknown marker type?
ARController.Log(string.Format(LOAD_FAILURE, "due to unknown marker"));
return;
}
// If a valid config. could be assembled, get ARToolKit to process it, and assign the resulting ARMarker UID.
if (string.IsNullOrEmpty(configuration))
{
ARController.Log(LOG_TAG + "trackable configuration is null or empty.");
return;
}
uid = PluginFunctions.arwAddMarker(configuration);
if (UID == NO_ID)
{
ARController.Log(LOG_TAG + "Error loading trackable.");
return;
}
// Trackable loaded. Do any additional configuration.
if (Type == TrackableType.Square || Type == TrackableType.SquareBarcode)
{
UseContPoseEstimation = currentUseContPoseEstimation;
}
Filtered = currentFiltered;
FilterSampleRate = currentFilterSampleRate;
FilterCutoffFreq = currentFilterCutoffFreq;
// Retrieve any required information from the configured ARTrackable.
if (Type == TrackableType.TwoD)
{
int dummyImageSizeX, dummyImageSizeY;
float dummyTwoDImageHeight;
PluginFunctions.arwGetTrackableAppearanceConfig(UID, 0, null, out TwoDImageWidth, out dummyTwoDImageHeight, out dummyImageSizeX, out dummyImageSizeY);
TwoDImageWidth *= UNITY_TO_ARTOOLKIT;
}
else
{
// Create array of patterns. A single marker will have array length 1.
int numPatterns = PluginFunctions.arwGetTrackableAppearanceCount(UID);
if (numPatterns > 0)
{
patterns = new ARPattern[numPatterns];
for (int i = 0; i < numPatterns; ++i)
{
patterns[i] = new ARPattern(UID, i);
}
}
}
}
}
