I also am unsure of the original poster's problem.
In my case, I used the moments of the section to calculate the bending
properties of the bone, so I use Ixx & Iyy about the centroid, along a user
defined bending axis.
The principal axes and Iz are there too, but I don't use them in the final
output.
As Bob said, it depends on what Debra is after...
Rob.
--
Robert Day ph +61 8 9224 3227
Project Bioengineer fax +61 8 9224 1138
Royal Perth Hospital robert.day@xxxxxxxxxxxxxxxx
> -----Original Message-----
> From: ImageJ Interest Group [mailto:IMAGEJ@xxxxxxxxxxxx]
> Sent: Friday, 24 February 2006 2:51 AM
> To: IMAGEJ@xxxxxxxxxxxx
> Subject: Re: Moment of inertia calculations
>
>
<snip>
> be necessary to compute more of the tensor. Before putting
> more effort into
> this, it would be good to understand the 3D problem better.
>
> Bob
>
> Robert P. Dougherty, Ph.D.
> President, OptiNav, Inc.
> Phone (425) 467-1118
> Fax (425) 467-1119
> www.optinav.com
>
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