Trouble with retrieving FloorNormal data

1

Hi, I’m trying to retrieve the floorplane data detected by Nuitrack SDK.
I use Unity and Intel RealSense D435 for my project development.

This is what I did to my script:

…
public Vector3 normal;
private nuitrack.UserFrame aaa = new nuitrack.UserFrame();
…

void Update()
{

if (CurrentUserTracker.CurrentUser != 0) //if user is tracked
{
…
normal = aaa.FloorNormal.ToVector3();
Debug.Log(normal);
…
…

And after running the project what I get is (0,0,0),
every time it prints the “normal vector” on the debugging console.

Can anyone help me out? Thanks!

2

To get the floor plane, you can use the functions UserFrame::Floor() and UserFrame::FloorNormal(), but the floor should be well observed.

3

Thank you first. I have used the functions UserFrame.FloorNormal, however, I got (0,0,0), according to your advice, I try to make the camera observe floor well, but there is no change. I do not know why.
Maybe because the UserFrame() needs a parameter? I do not know what to pass to it. Sorry I am a beginner of C#.

4

We’ve noticed that you’re creating a new empty object UserFrame in your example:
private nuitrack.UserFrame aaa = new nuitrack.UserFrame ();
However, nuitrack.UserFrame must be received from UserTracker.OnUpdateEvent.
Are you updating it after UserTracker.OnUpdateEvent?

5

Okay thank you I will have a try!