From: Robert H. <ha...@st...> - 2016-02-02 23:49:03
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You can create two independent isosurfaces, one positive and one negative. I have not tried that with difference maps, but it should work. I think it all goes through the same algorithm. *CUTOFF x.xxx*Sets the cutoff value defining an isosurface. Typically, smaller values correspond to a larger object. Cutoffs can be either positive or negative. In the case of a molecular orbital, a positive number indicates to use both positive and negative cutoffs. Adding an explicit "+" sign before the number indicates that only the positive part of the surface is desired. (See also RMSD, below.) On Tue, Feb 2, 2016 at 4:45 PM, Frieda Reichsman <fri...@ma...> wrote: > Hi Bob, > > Is it possible to obtain a difference density map (isosurface) at a > different RMSD for the positive and negative areas of the map? > > For example, can I specify an RMSD value of 2.0 for negative areas of the > map, and an RMSD value of 2.5 for the positive areas? > > Alternatively, is it possible to make a map that is negative only? > > Thanks, > Frieda > > > > ////////////////////////////////////// > > Frieda Reichsman, PhD > Molecules in Motion > Interactive Molecular Structures > http://www.moleculesinmotion.com > USA > > ////////////////////////////////////// > > > > > > > > > ------------------------------------------------------------------------------ > Site24x7 APM Insight: Get Deep Visibility into Application Performance > APM + Mobile APM + RUM: Monitor 3 App instances at just $35/Month > Monitor end-to-end web transactions and take corrective actions now > Troubleshoot faster and improve end-user experience. Signup Now! > http://pubads.g.doubleclick.net/gampad/clk?id=267308311&iu=/4140 > _______________________________________________ > Jmol-users mailing list > Jmo...@li... > https://lists.sourceforge.net/lists/listinfo/jmol-users > > -- Robert M. Hanson Larson-Anderson Professor of Chemistry Chair, Department of Chemistry St. Olaf College Northfield, MN http://www.stolaf.edu/people/hansonr If nature does not answer first what we want, it is better to take what answer we get. -- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900 |