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While tracking an ImageTarget, how to know when ground plane detected?

March 5, 2019 - 4:07pm #1

My app uses World Center Mode == DEVICE and Tracking mode == POSITIONAL. I start by finding and tracking an image target then I need to detect the floor. The ground plane sample app uses the tracking status of the device to know when the ground plane has been detected. However, that doesn't work for me because the device is already tracking the image target. How do I know when the ground plane is detected?

I can see that the ground plane is being successfully tracked by my app because the plane indicator snaps onto the floor. However, I'm not sure which event or state I should use to know when ground plane tracking begins and ends. I've tried monitoring the tracking status of my ground plane stage but that only works in the Unity editor. On an Android device the tracking status of the ground plane stage is always NO_POSE.

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