[MINC-users] ray_trace question

[Vivek SINGH]

Hi Jonathan,

The -transform option needs to be specified before the object to be
transformed, like so:

ray_trace -output my.rgb -transform xrot 45.0 my.obj -size 200 200

Vivek

On Thu, 11 Aug 2005, Jonathan LAU wrote:

> Hi,
>
> There is an undocumented -transform feature to ray_trace that I would like to use to produce images from an .obj I have.
>
> It's supposed to be able to take as a parameter either a .xfm file or a set of angles specifying the x, y, z rotation.
>
> I haven't been able to get the views to change, other than by using the standard canonical views...
>
> For Ex.11 of the ray_trace tutorial (http://www.bic.mni.mcgill.ca/~david/Ray_trace/ray_trace_tutorial.html#Ex11), it is stated that specifying a view orientation numerically is described later (but is never done).
>
> This is how I've been trying to use it:
> ray_trace -output my.rgb my.obj -size 200 200 -transform xrot 45.0
> or
> ray_trace -output my.rgb my.obj -size 200 200 -transform t.xfm
>
> I've even tried specifying -centre (for specifying the centre of rotation), but that hasn't worked either.
>
> Has anyone had experience with this?
>
> Thanks,
> Jonathan
>
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