@Corvus Thank you very much for the replying!!
But I still have a few questions want to know:
1. I've noticed this figure(VIVE PTO EYE: use the "Right-handed coordinate system"), I guess it means that if the user is looking at the right, the x axis of right/left gaze direction would be +. I tested the results as the figure, if I didn't moved my head, looked at the right, but the x axis of gaze_direction was negative value, what does the (0,1)value and negative/positive value mean? how to interpret it?
2. Does the the figure of coordinate mean relative position with the HMD? How to interpret the coordinates of gaze_direction if user turn his/her way left/right?
3. Although I know that Gaze_Origin means the starting point of Gaze_Direction, I still don't know how to interpret the value, what does the (0,1)value and negative/positive value mean?
4. I know that the CombinedEyeData Struct is not supported yet, Is the Combine Origin equal to "eye_data.verbose_data.combined.eye_data.gaze_origin_mm.elem_;"? What does the (0,1)value and negative/positive value mean?
Thank you very much for helping me, I am looking forward to your reply.
@Corvus @Daniel_Y