Thanks very much for your reply.Fortunately,I have used g_density in NVT
systems. Does the expression " it is built from the coordinate origin outward"
mean that the mass density profile is calculated based on the average of the
coordination and weight of each atom of the molecule?
With best wishes,
Qiwei Yang
- Original Message -
From: Justin Lemkul
To: Discussion list for GROMACS users
Date: 2013-05-23, 19:54:11
Subject: Re: [gmx-users] the details about g_density
On 5/22/13 9:12 PM, vigaryang wrote:
> I have used the program "g_density" to generate the mass density profile and
> the charge density profile of molecules at gas-liquid interface. My question
> is: Is the center of mass/charge used by g_density to compute the the
> mass/charge density profile?
>
No, it is built from the coordinate origin outward. Note that there are
problems with g_density when using NPT and/or complex systems:
http://redmine.gromacs.org/issues/1168
The issue also has some useful information about how g_density works, which of
course can also be obtained from the code itself.
-Justin
> I'm eager for the answer, because the reviewer of my submitted article ask me
> for that question but I don't know how to reply. I have used google to search
> for the answer, but I did not found.
>
> I really appreciate you for the attention and consideration to this email.
>
>
> Best regards,
>
> Vigar Yang
>
> Department of Chemical and Biological Engineering,
> Zhejiang University,
> Hangzhou, China
>
>
>
>
--
Justin A. Lemkul, Ph.D.
Research Scientist
Department of Biochemistry
Virginia Tech
Blacksburg, VA
jalemkul[at]vt.edu | (540) 231-9080
http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
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