SpatialEntity.Tracked

BtnState Tracked{ get }

Description

Is the system tracking this entity right now? While active, Pose and all component data are live. While inactive, they’re last known and may be stale, or empty if the entity hasn’t been tracked yet. For requests still in progress, like a new anchor, check Status instead. Entities that are permanently lost leave the entity list, except persisted ones, which keep their identifier with Status Pending while storage loads them again.

Examples

Reading QR codes

public void StartQrCodes()
{
	Spatial.Request(SpatialCapability.QrCode);
}

public void StepQrCodes()
{
	// New lists each entity exactly once, on the frame it appears
	foreach (SpatialEntity code in SpatialEntity.NewWith(SpatialComponent.Marker))
		Log.Info($"Found a QR code: {code.MarkerText}");

	foreach (SpatialEntity code in SpatialEntity.With(SpatialComponent.Marker))
	{
		// Codes keep their last pose out of view, so only show ones in sight
		if (code.Tracked.IsActive())
			Text.Add(code.MarkerText ?? "", code.Pose.ToMatrix());
	}
}

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