[Chimera-users] Adjust angle

[Eric Pettersen]

Hi Thomas,
	Since Chimera allows you to change bond lengths and torsion angles,  
it would seem that just as a matter of completeness it should allow  
you to change bond angles as well.  So despite that not being a  
commonplace desire, I will add it to my to-do list and open a feature- 
request ticket in our Trac database with you on the recipient list so  
you'll know when it gets implemented.  It may take awhile (there's a  
request for chirality inversion in front of it), but it'll get done  
eventually.

--Eric

P.S.  In case you didn't know, you can set bond lengths in the "Adjust  
Bonds" tab of the Build Structure tool.

On Apr 19, 2011, at 9:55 AM, Thomas Mitterfellner wrote:

> Hello!
>
> My question is: it possible not just to measure but to change the  
> angle
> between three atoms (e.g. A1 and A2 fixed, A3 rotated in the plane
> spanned by A1-A2-A3 with radius A2-A3)?
>
> What I really like in Chimera (and miss in other molecular modelling
> software) is the possibility to move/rotate only the atoms selected,
> which is great e.g. for pre-aligning two molecular fragments when
> modelling transition states.
>
> I know chimera is actually rather intended to be used for large
> molecules but it could be a great tool for modifying/building  
> structures
> if only it was easier to modify structural parameters like bond  
> lengths,
> angles and torsions (which I saw is possible).
>
> Kind regards,
>
> Thomas Mitterfellner
>
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