# [Chimera-users] [EXTERNAL] Re: translation along x,y and z

Ashok Nayak Ashok.Nayak at vcuhealth.org
Thu Apr 1 17:07:05 PDT 2021

Thanks Elaine!  Well you answered well before others in the team. 👍

On Apr 1, 2021 at 8:02 PM, <Elaine Meng<mailto:meng at cgl.ucsf.edu>> wrote:

Hey, I'm not the only one who answers these questions!  :-)

It is explained in the "Fit in Map" manual page:
<https://urldefense.com/v3/__https://www.rbvi.ucsf.edu/chimera/docs/ContributedSoftware/fitmaps/fitmaps.html*matrices__;Iw!!JqxBPMk!xxVnA8H7hYuofVFeoHwHPo-TJhHwl52Ro3yS2YPnrup56wIKqpeuq-rtH-PilKRZ3g\$ >

"The transformation matrix of the fit model relative to the reference map is reported in the Reply Log. The first three columns of the matrix describe a rotation and the fourth describes a translation (performed after the rotation)."

I hope this helps,
Elaine
-----
Elaine C. Meng, Ph.D.
UCSF Chimera(X) team
Department of Pharmaceutical Chemistry
University of California, San Francisco

> On Apr 1, 2021, at 3:46 PM, Ashok Nayak <Ashok.Nayak at vcuhealth.org<mailto:Ashok.Nayak at vcuhealth.org>> wrote:
>
> HI Elaine,
> I want to know the rotation and translation components along x,y and z separately from the rotation matrix obtained from chimera reply log upon fitting a model into a map. Will it be possible to know?
>
> Matrix rotation and translation
>      1.00000000  -0.00000000  -0.00000000   1.83458738
>     -0.00000000   1.00000000  -0.00000000   1.15016978
>     -0.00000000  -0.00000000   1.00000000  -0.53835221
>   Axis   0.00000000   0.00000000   1.00000000
>   Axis point   0.00000000   0.00000000   0.00000000
>   Rotation angle (degrees)   0.00000000
>   Shift along axis  -0.53835221
>
> thanks,
> Ashok

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