[Chimera-users] Angles

[Eric Pettersen]

On Nov 6, 2007, at 7:38 AM, Greg Pintilie wrote:

> yes, try:
>
> chimera.selection.currentAtoms()
>
> this will return a list of the currently selected atoms in the  
> Chimera viewer.
>
>
> For your purposes, it sounds like you want vectors between every two
> atoms that you subsequently select. Watch out however, that the list
> returned by the above command need not be in the order that you made
> the selection. I noticed that in general the selection routines return
> atoms in arbitrary order, independent of the selection order or their
> position in the structure. Not sure if there is any way to enforce any
> kind of order?

chimera.selection.currentAtoms(ordered=True)

This returns the atoms in the order they were selected.  It's not the  
default since it involves a possibly-expensive sorting operation and  
because many uses of the current selection don't care about the  
ordering.

--Eric

                         Eric Pettersen
                         UCSF Computer Graphics Lab
                         http://www.cgl.ucsf.edu


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