[MINC-users] transformation file of mritotal

[Jonathan Harlap]

The easiest way to move between parametric transforms and the transform 
matrix is probably to use xfm2param and param2xfm.

The translation is easy: it's the last column.  Rotation is slightly 
more complicated - you can get a quick idea about it at 
http://en.wikipedia.org/wiki/Transformation_matrix

Cheers,
J


xingfeng lee wrote:
> Dear MINC experts,
> 
> I got 4x4 transformation file from mritotal:
> 
> Transform_Type = Linear;
> Linear_Transform =
> 1.0360     0.0081     0.0693    1.1722
> -0.02060   1.1636     0.1712    0.2813
> -0.08278  -0.18677   1.259639   18.8650436401367;
> 
> It is 4x4 matrix, i am wondering:
> which element is corresponding to the X translation,
> which is the Y translation,
> which is the X translation, 
> which is the X rotation,
> which is the Y rotation, 
> and which is the Z rotation.
> 
> Thanks in advance
> 
> 
> 
>  
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