How to keep the Orientation of mainview same as the world coordinates in the vizard

[jacky]

Hi all,

I want to put a 3DOF orientation on my HMD, but the platform of HMD is a little slant instead of a horizontal plane. So when I put on the HMD, the mainview is not same as the world coordinates of the Vizard. But I don't know how to offset the slant and face the north when starting the script. In another words, the euler of the mainview is [0,0,0]. If someone knows, please tell me. Thanks very much.