From: John Stone (johns_at_ks.uiuc.edu)
Date: Thu Mar 12 2009 - 13:17:23 CDT

Hi, "step" is used to decrease the resolution of the resulting surface in
cases where one views a very high resolution volumetric dataset that's
so big it overwhelms their graphics card... The "size" parameter is
used when rendering isosurfaces as lines.

Cheers,
  John Stone
  vmd_at_ks.uiuc.edu

On Thu, Mar 12, 2009 at 01:04:01PM -0500, HeeSung Choi wrote:
> Dear VMD users,
>
> Whn I plot charge density using VMD and vasp plugin, I choose VASP_CHGCAR as
> afile tipe, and open the Graphical Representation window. Then I can see
> some factors in that window. My question is what "Step" and "Size" in
> Graphical Representations means.
> I just use those valuses are "1". But I am not sure these values are
> reasonable or not.
> Please let me know the meaning of "Step" and "Size".
> Thank you.
>
> Regards,
> HeeSung Choi

-- 
NIH Resource for Macromolecular Modeling and Bioinformatics
Beckman Institute for Advanced Science and Technology
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