# Resources

Reference for implementing this library are from here [vrpn-rs description of VRPN protocol](https://github.com/vrpn/vrpn-rs/blob/main/Protocol.md)
Unfortunately, there are some mistakes in the document, most notably it presumes that
Quaternion in VRPN (quat library) are w,x,y,z - which is incorrect.

# Design

Allow for a session based design - data needs to be collected per block 
and immediatly made available. Minimal or no internal state keeping!

- first collect names and ids of message_types and senders (stored in session)
- register listeners in session
- listeners inject captured data with signals
- keep naming "classic" ??? ... above session is a tracker with a sender with sensors

# Todo
- [x] Testset for Quaternion rotations
- [x] Axis as subscene 
- [ ] make global/local a choice
- [ ] add velocity and acceleration
- [ ] add buttons

# Internal Notes

- Graphics Interaction Lab OptiTrack system is at 212.201.64.122