Distance between two trackers

[steve69]

Hi there,

would like to measure the distance between two trackers.
Place two trackers on the floor at a distance of X cm from each other.

In Unity (SteamVR + ViveInputUtility) I use the function
1. Vector3.Distance (Tracker1.position, Tracker2.position)
    Distance -> Result
    1m -> 4,250
    0.5m -> 3,904
    0.25m -> 3.748

2. Vector3.Distance (Tracker.position.z, Tracker.position.z)
    Distance -> Result
    1m -> 3.44
    0.5m -> 3.04
    0.25m -> 2.84

What do these numbers tell me now?
I don't understand that!

I am currently using a configuration without HMD.
Do I have to calibrate the system somehow (room measurement) so that I get meaningful values?

Strangely enough, the trackers are very far below my floor. Funny too!

Thank you
Stephan

 

@chengnay

[chengnay]

@steve69 I will need time to test this out, I had never tried without HMD.

Or are you able to try with HMD and see if you are getting the right distance value?

[steve69]

Will try the HMD next week.
If you want to try it without an HMD, here is a good description.

http://www.pencilsquaregames.com/getting-steamvr-tracking-data-in-unity-without-a-hmd/

I use SteamVR 1.9.16

 

[steve69]

After I had to reinstall my computer, the values are strangely as expected.
Mmmm, I don't know what happened there.
Guess that solved my problem by itself.

Thanks anyway for your help.

 

Stephan

[chengnay]

Great to hear that, feel free to ask questions when you need help 🙂