Re: [gmx-users] Calculating Eccentricity

2016-06-15 Thread Erik Marklund
Dear Sanket, Removing periodicity is difficult if SDS molecules transiently leave the micelle and return after having moved one or more unit cells. You might want to try using gmx clustsize to generate snapshots along the trajectory and use trjconv on them to put all molecules in the same unit

Re: [gmx-users] Calculating Eccentricity

2016-06-15 Thread Tsjerk Wassenaar
Hi Sanket, You probably want the clustering routine of trjconv. And then calculate the principal axes of the micelle. The instantaneous value does not mean much, but a an average non-zero eccentricity would suggest with a greater extent than without peptide would suggest an effect. Note that you d

[gmx-users] Calculating Eccentricity

2016-06-14 Thread Sanket Ghawali
Dear gmx user I am performing a MD simulation of peptides in sds for 100ns. After the completion of my production I am unable to remove the periodic boundary condition. I wanted to Calculate the eccentricity of the SDS micelle after 100ns, does the periodic boundary condition affect my eccentricit