VMD-L Mailing List

From: Axel Kohlmeyer (akohlmey_at_cmm.chem.upenn.edu)
Date: Sun Oct 07 2007 - 23:48:36 CDT

On Mon, 8 Oct 2007, Emilia Wu wrote:

EW> Hi John,

hi emilia,

EW>
EW> I just want to know how to express a representation about within 10 angstrom of a
EW> specific point, which the coordinate is (10.204 -4.164 -0.377).

even though i am not john, i have a suggestion for you.
a selection string of:

sqr(x-10.204) + sqr(y+4.164) + sqr(z+0.377) < sqr(10)

should give you what you want.

cheers,
   axel.

EW>
EW> many many thanks in advance!
EW>
EW>
EW>
EW>
EW>
EW>
EW> Emilia
EW> +-----------------------------------------------------------------------------+
EW> | Emilia L. Wu (Ph.D. student) |
EW> | State Key Laboratory of Molecular Reaction Dynamics, |
EW> | Dalian Institute of Chemical Physics, |Tel:(86411)84379352 |
EW> | Chinese Academy of Sciences |Fax:(86411)84675584 |
EW> | Dalian 116023, P.R.China |Email:emiliawu_at_dicp.ac.cn |
EW> +-----------------------------------------------------------------------------+
EW> 

-- 
=======================================================================
Axel Kohlmeyer   akohlmey_at_cmm.chem.upenn.edu   http://www.cmm.upenn.edu
   Center for Molecular Modeling   --   University of Pennsylvania
Department of Chemistry, 231 S.34th Street, Philadelphia, PA 19104-6323
tel: 1-215-898-1582,  fax: 1-215-573-6233,  office-tel: 1-215-898-5425
=======================================================================
If you make something idiot-proof, the universe creates a better idiot.