Hi Merlin -

Try limiting the distances shown to those between atoms in specific selections 
using the `distance` command.  For example, to show H-bonds to solvent, disable 
the “my_obj_pol_conts” object created by the technical preset and use the 
command:

distance my_dist, my_obj and not solvent, my_obj and solvent, cutoff=3.5

Make sure to specify a cutoff or you’ll get every pair of polar atoms between 
your selections.

Hope that helps.

Cheers,
Jared
--
Jared Sampson
Xiangpeng Kong Lab
NYU Langone Medical Center
http://kong.med.nyu.edu/






On May 27, 2014, at 3:33 AM, 天元 <422294...@qq.com<mailto:422294...@qq.com>> 
wrote:


Dear PyMol users!


I'm analysing polar contacts by "preset:technical". I got so many yellow bar 
measurements that I can't count the number.

IS there any else way to count the number of all polar contacts ?

Thanks for help,


Merlin

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