[ITK-users] Calculate transformation matrix for two vectors

[Swetha Sharma]

Dear All,


I would like to calculate a transformation matrix between two vectors
using Itk. Right now I am manually calculating the translation parameter
between the vector and the angle between the two vectors. Is there any
other easy way to find the transformation matrix given the vectors? If not,
Is there a function to calculate the rotation matrix given the angle and
the axis of rotation is arbitary axis.

-swetha

[Dženan Zukić]

Hi Swetha,

how are your vectors represented? 3 numbers or a pair of points?

There is an angle-axis rotation function, Rotate3D
<https://itk.org/Doxygen/html/classitk_1_1AffineTransform.html#a7b2c85cdc28135827da937db01d87dd9>
.

Regards,
DÅŸenan Zukić, PhD, Senior R&D Engineer, Kitware (Carrboro, N.C.)

Post by Swetha Sharma
Dear All,
I would like to calculate a transformation matrix between two vectors
using Itk. Right now I am manually calculating the translation parameter
between the vector and the angle between the two vectors. Is there any
other easy way to find the transformation matrix given the vectors? If not,
Is there a function to calculate the rotation matrix given the angle and
the axis of rotation is arbitary axis.
-swetha
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