Posted by
Pablo Domínguez García on
URL: http://imagej.273.s1.nabble.com/Moment-of-inertia-calculations-tp3703568p3703571.html
Only a comment,
The algorithm below is for the component 1,1 of the tensor of inertia.
The other components must be also calculated (20, and 02). These terms
are analogous to the 1,1 component but using a sum with (x-x0)*(x-x0)
and (y-y0)*(y-y0).
Then, the matrix can be diagonalized for obtaining the main moments of
inertia (in the main directions).
Am I right?
Day, Robert wrote:
>Hi Debby,
>
>I have a plugin that does just this, which we have used successfully on bone fracture surfaces that were scanned on a flatbed scanner. Its not very user friendly, I'm afraid, as I wrote it in a hurry for one job only and have not had time to pretty it up since (a familiar story to all I suspect...)
>
>Rather than burden the list with binary attachments, I have sent the .zip file direct to you, and also to Wayne to see if it is up to inclusion on the main ImageJ site.
>
>Rob.
>--
>Robert Day ph +61 8 9224 3227
>Project Bioengineer fax +61 8 9224 1138
>Royal Perth Hospital
[hidden email]
>
>
>
>>-----Original Message-----
>>From: ImageJ Interest Group [mailto:
[hidden email]]
>>Sent: Thursday, 23 February 2006 12:18 AM
>>To:
[hidden email]
>>Subject: Moment of inertia calculations
>>
>>
>>Hi
>>I am interested in measuring the moment of inertia of a bone slice.
>>Can this be done in ImageJ?
>>Thank you
>>Debby Schneider
>>
>>
>>
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