Dear Zang,
I support the statement yaw=azimuth and
pitch=elevation. IMHO, the correct order for the
rotation is yaw, pitch, roll. I think this is always
the case, however the calling function you are
using may be using the order [pitch,yaw,roll],
but this is just the order of the argument, not the
order of the execution of the rotations.
Hope this help
Yohan
----- Original Message -----
From: "zhang ming" <shmu1998@y ........>
To: <arforum@t .........>
Sent: Tuesday, January 08, 2002 4:54 AM
Subject: [ARFORUM]
> Dear AR colleague:
>
> Now I am trying to play with the tracking system.
> But I found the different tracking systems from the
> different company give the different definition and
> order of euler angles.
>
> some use the order of the 3space euler angle rotation
> sequence is azimuth,elevation, and roll.
>
> some use the order of 3space euler angle rotation
> sequence is pitch,yaw,roll.
>
> since according to some literature yaw=azimuth
> elevation =pitch
>
> so it seems the reluts is unequal.
>
> Because it is relevant to the establishment of
> rotation matrix, it is important to kow exact order of
> rotation, so does anyone have clear and uniform idea
> about that ?
>
>
> thanks in advance
>
_______________________________________________________________________
Yohan BAILLOT
Virtual Reality Laboratory,
Advanced Information Technology (Code 5580),
Naval Research Laboratory,
4555 Overlook Avenue SW,
Washington, DC 20375-5337
Email : baillot@a ...............
Work : (202) 404 7801
Home : (202) 518 3960
Cell : (703) 732 5679
Fax : (202) 767 1122
Web : http://ait.nrl.navy.mil/vrlab/projects/BARS/BARS.html
_______________________________________________________________________
>
> calvin
>
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