Re: Aw: [gmx-users] Order of atoms in topology

2013-04-29 Thread Justin Lemkul
On 4/29/13 8:34 PM, Mark Abraham wrote: I do not see that the caption to figure 4.8 implies a "reference" atom. It Sorry, loose terminology after a long day. "Reference atom" is a poor choice. What I meant was with respect to the way pdb2gmx constructs impropers - the central atom (i.e. th

Re: Aw: [gmx-users] Order of atoms in topology

2013-04-29 Thread Mark Abraham
I do not see that the caption to figure 4.8 implies a "reference" atom. It talks merely about the angle between planes i-j-k and j-k-l. That angle is signed and the sign is significant for equation 4.60. Does the sign of the angle differ from that between l-k-j and k-j-i? I think not, but it's way

Re: Aw: [gmx-users] Order of atoms in topology

2013-04-29 Thread Justin Lemkul
On 4/29/13 8:00 PM, Mark Abraham wrote: On Mon, Apr 29, 2013 at 11:34 PM, Justin Lemkul wrote: Please start a new thread if you're going to introduce a new topic. I have changed the subject to something more relevant. On 4/29/13 4:23 PM, lloyd riggs wrote: *Dear All,* *Doing a water/tem

Re: Aw: [gmx-users] Order of atoms in topology

2013-04-29 Thread Mark Abraham
On Mon, Apr 29, 2013 at 11:34 PM, Justin Lemkul wrote: > > Please start a new thread if you're going to introduce a new topic. I > have changed the subject to something more relevant. > > On 4/29/13 4:23 PM, lloyd riggs wrote: > >> *Dear All,* >> *Doing a water/temp energy minimization just for

Re: Aw: [gmx-users] Order of atoms in topology

2013-04-29 Thread Justin Lemkul
Please start a new thread if you're going to introduce a new topic. I have changed the subject to something more relevant. On 4/29/13 4:23 PM, lloyd riggs wrote: *Dear All,* *Doing a water/temp energy minimization just for a figure with a large molecule that has several connected parts, I ra