Is there a way to get the User's own hand position when they put it into view of the HoloLens?

dbarrett

It's obvious that the HoloLens can detect when the user's finger is in the ready position. Is there a way to get the position of the hand when the user enters this state?

dbarrett

I found the answer, just attach this script to an object in the scene.

using UnityEngine.VR.WSA.Input;

void Awake () {

    InteractionManager.SourcePressed += GetPosition;

}

private void GetPosition(InteractionSourceState state)
{
    Vector3 pos;
    if (state.properties.location.TryGetPosition(out pos))
    {
        Debug.Log(pos);
    }
}

dbarrett

I found the answer, just attach this script to an object in the scene.

using UnityEngine.VR.WSA.Input;

void Awake () {

    InteractionManager.SourcePressed += GetPosition;

}

private void GetPosition(InteractionSourceState state)
{
    Vector3 pos;
    if (state.properties.location.TryGetPosition(out pos))
    {
        Debug.Log(pos);
    }
}

james_ashley

@dbarrett,

You can capture events from the Unity InteractionManager:

UnityEngine.VR.WSA.Input.InteractionManager.SourceDetected

or

UnityEngine.XR.WSA.Input.InteractionManager.SourceDetected

(depending on whether you are up to 2017.2 or not, yet)

Then grab the hand position from the event argument passed to your handler:

        private void InteractionManager_SourceDetected(InteractionSourceState state)
        {
            Vector3 hand_position;
            state.properties.location.TryGetPosition(out hand_position);

...

James

james_ashley

Oh man. Jinx.