[MINC-users] minctracc angles problem

[Simon Fristed Eskildsen]

Hi all,

I run
minctracc -lsq12 -mi input.mnc target.mnc output.xfm

and get:
COG of v1: -0.014192 136.356400 -4.679813
COG of v2: 0.591960 -18.756006 3.126583
    [trans] = 0.606151 -155.112411 7.806396
WARNING: (rotmat_to_ang.c:187) step one: rz not in the range -pi/2..pi/2
Could not extract angles from rotation matrix:
   -0.711324    0.703226    0.030620
    0.703189    0.714539    0.039374
    0.036176    0.026770    1.002540
You can try rerunning minctracc with '-est_translation'
The program will continue with angles = 0.0, 0.0, 0.0

I guess it means that no rotations are performed. Why does minctracc not 
handle rotations outside the range -pi/2..pi/2 ?
Is there a way to solve this. Running with -est_translation does not 
solve anything.

Thanks,
Simon