What does the position and orientation get by GetSkeletonJoint() mean ?

[Jiaxiang Zheng]

Hey, guys:

      I am encountering a simple problem: what does the position and orientation get by GetSkeletonJoint() mean? what's the coordinate frame? is the camera  at the origin?? or what? How does those parameters compute by openni?

best wishes.

Tsung

[Roee Shenberg]

The coordinate frame is "Real World", as in 0,0,0 is the depth CMOS, positive Z is the direction the sensor is looking at (the sensor's "forward"), positive Y is the sensor's "up". 

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