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Thank you Jesper, I just found this post, after trying to figure out the bvector rotation, which I might then do via matlab, if what I did below is correct. Would you mind checking this short example for me please?

I used the approach listed on the FSL site. http://fsl.fmrib.ox.ac.uk/fsl/fslwiki/eddy/Faq#Will_eddy_rotate_my_bevcs_for_me.3F

All the best wishes and thank you,
Barbara






extracted from eddyparams
Rx                        Ry                          Rz
0.01139839832  -0.001556542935  0.002328578383

x=bvector [-.109; -.92; -0.376]

Rx=[cos(0.01139839832)  sin(0.01139839832) 0
-sin(0.01139839832) cos(0.01139839832) 0
0        0        1]

Ry=[cos(-0.001556542935) sin(-0.001556542935) 0
-sin(-0.001556542935) cos(-0.001556542935) 0
0    0    1]

Rz=[cos(0.002328578383) sin(0.002328578383) 0
-sin(0.002328578383) cos(0.002328578383) 0
0        0        1]

x’=rotatedbvector [-0.0978   -0.9213   -0.3760]


On Wed, Aug 12, 2015 at 2:56 PM, Jesper Andersson <[log in to unmask]> wrote:
Dear Sjoerd,

our next release is expected within the next month (subject to all the usual warnings that we might get delayed etc). As part of that we will release a new version of eddy that includes the rotation option.

Jesper

On 12 Aug 2015, at 14:08, Sjoerd Vos <[log in to unmask]> wrote:

> Hi Jesper,
>
> Without wanting to sound impatient, I was wondering if there is any indication as to when the release of the new version will be? A month, six, a year? The bvec rotation is something we'd like to have in out processing pipeline, so depending on when the release will roughly be it might be worth investing time into verifying the scripts posted earlier.
>
> Kind regards,
> Sjoerd