[MINC-users] Computing vertices average distance

[francois hebert]

Hi Mishkin,

What I want to know it's the average distance between all verties in one
single .obj file.
I'm working on the cortical thickness and I want to smooth the data using
the diffuse minc tool the thing is that I would like to ahve an idea about
the distances between the vertices to know the range of fwhm I should use.

Thanks for the reply

Francois

2011/1/27 Mishkin Derakhshan <mishkind at gmail.com>

> Hi Francois,
>
> Can you give us some more detail?
>
> Do you have a single .obj file with n vertices and you want to know
> the average distance between all of them, or just the central point
> (com) of all the vertices?
> or, do you have n .obj files, each with m vertices and you want to
> know the average distance at a particular vertex, across all .obj
> files?
>
> You might want to look at average surfaces which will not give you a
> distance, but rather a new .obj file which will contain the location
> of the average vertex.
>
> Usage: average_surfaces output.obj  none|rms_file  none|variance_file
> n_groups
>         [input1.obj] [input2.obj] ...
>
> I usually invoke as follows:
> average_surfaces average.obj none none 1 surf1.obj surf2.obj
>
> hth,
> mishkin
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