Re: [gmx-users] h-bonds by g_hbond and VMD and ptraj

2015-10-05 Thread Ondrej Kroutil
Hi Erik, Thank you for fast reply. I knew about differences between definitions of angle criterion in Gromacs, VMD and cpptraj but I didn't realize that there is nontrivial relationship between these two different definitions. I have gone deeper into this problem and now it makes sence to me. Tha

Re: [gmx-users] h-bonds by g_hbond and VMD and ptraj

2015-10-04 Thread Erik Marklund
Hi Ondrej, They use different angles to determine if it is a bond or not. See respective manuals. Kind regards, Erik Erik Marklund, PhD Postdoctoral Research Fellow Fulford JRF, Somerville College Department of Chemistry Physical & Theoretical Chemistry Laboratory University of Oxford South Pa

[gmx-users] h-bonds by g_hbond and VMD and ptraj

2015-10-02 Thread Ondrej Kroutil
Hi gromacs users. I did h-bond analysis between solute and solvent using g_hbond utility with default settings (3.5A, 30°) and same analysis in VMD (Hydrogen bonds module) with same settings. And I get different numbers. So I did same analysis with cpptraj from Amber (angle 150° due to different de