[Jmol-users] Coincident Hydrogens with minimize addHydrogens

2010-01-19 Thread Otis Rothenberger
In Jmol 11.9.20_dev, the transfer of a terminal alkene or a primary amine from both Marvin Sketch and JME followed by minimize addHydrogens results in coincident hydrogen atoms. Both hydrogen atoms are in the molfile, they are just coincident. There may be other cases of coincident hydrogen atoms,

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Robert Hanson
Thanks, that really helps. Unfortunately, that won't work. I don't know if it's just different fields using the same data files, but the files I have that are from electron diffraction simply display nothing when you use that cutoff. Still, it might be useful to implement something like a sigma opt

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread rgb
Robert Hanson wrote: > Keep talking, Rich. I don't quite have it. > > I have a file of numbers. An isosurface is produced not by contouring > but by finding the surface that intersects that cube of numbers at a > specific "cutoff" value. > > > dmin dmax dmean (density min max mean) > > >

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Robert Hanson
Keep talking, Rich. I don't quite have it. I have a file of numbers. An isosurface is produced not by contouring but by finding the surface that intersects that cube of numbers at a specific "cutoff" value. > dmin dmax dmean (density min max mean) > > > > rms > >1 sigma = 1 esd = 1 rmsd*rmsd >

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Angel Herráez
> write "3hyd.jvxl" > > (from the application or signed applet) Or pop-up menu > File > Save JVXL Isosurface with a nice Save As dialog that lets you see/choose where it is going :-) -- Throughout its 18-year histor

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Robert Hanson
Eric, ah, so this IS something you haven't started using. No better time than now. You will really like this. The command, after displaying the isosurface, is write "3hyd.jvxl" (from the application or signed applet) then isosurface color yellow "3hyd.jvxl" mesh nofill will call it up. It will

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread rgb
On Tue, 19 Jan 2010 14:03:32 -0600, Robert Hanson wrote: > Is that in the file somewhere? What I have is > > dmin dmax dmean (density min max mean) > > rms > > Now, I DON'T think the "rms" is really "rms" -- I think it's rms deviation, > but I could be wrong about that. What seems to work as a

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Eric Martz
--- On Tue, 1/19/10, Robert Hanson wrote: From: Robert Hanson Subject: Re: [Jmol-users] Electron Density Map Demo To: jmol-users@lists.sourceforge.net Date: Tuesday, January 19, 2010, 2:08 PM Great  to hear that, Eric. I would be very interested in seeing on that last page a comparison of loadi

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Robert Hanson
Is that in the file somewhere? What I have is dmin dmax dmean (density min max mean) rms Now, I DON'T think the "rms" is really "rms" -- I think it's rms deviation, but I could be wrong about that. What seems to work as a reasonable default is dmean + 2*rms But that could be a complete misuse

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Brian Moldover
Talk about timing, I'm sitting at my desk reading a paper where they used the term and was JUST about to go look it up. You all are incredible! - brian -Original Message- From: r...@ellerbach.com [mailto:r...@ellerbach.com] Sent: Tuesday, January 19, 2010 2:27 PM To: jmol-users@lists.sou

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread rgb
The "sigma" is the esd (estimated standard deviation) for the value of the electron density at any grid point. So if the electron density calculations provide an esd of 1.2 electrons per cubic angstrom the 1 sigma contour lines would be at 1.2, the 2 sigma lines at 2.4, 3 sigma at 3.6 etc. Rich O

Re: [Jmol-users] Electron Density Map Demo

2010-01-19 Thread Robert Hanson
Great to hear that, Eric. I would be very interested in seeing on that last page a comparison of loading the ccp4 file and a JVXL version of it. Main question is: "What's a sigma?" On Tue, Jan 19, 2010 at 12:54 PM, Eric Martz wrote: > I have put an all new demo for electron density maps at > h

[Jmol-users] Electron Density Map Demo

2010-01-19 Thread Eric Martz
I have put an all new demo for electron density maps athttp://www.umass.edu/molvis/tests/jmol_edmEverything works!! (as far as I can tell ... now I need to learn more from the crystallographers here before I can take it further). As for the default sigma value for the contours, I have talked to

Re: [Jmol-users] Demo Electron Density Maps! - Mouse Behaviour

2010-01-19 Thread Robert Hanson
Here's another new option "set zshadepower" that could be fun to experiment with. Notice the intense fog http://chemapps.stolaf.edu/jmol/docs/examples-11/simple.htm?load%20quartz-action.png;set%20slabcleanly;set%20zshadepower%203 On Tue, Jan 19, 2010 at 6:45 AM, Robert Hanson wrote: > A wee bi

Re: [Jmol-users] Demo Electron Density Maps! - Mouse Behaviour

2010-01-19 Thread Robert Hanson
A wee bit better perhaps, with this option I'm experimenting with: http://chemapps.stolaf.edu/jmol/docs/examples-11/simple.htm?load%20quartz-action.png;set%20slabcleanly On Tue, Jan 19, 2010 at 6:42 AM, Robert Hanson wrote: > Mouse wheel -- right, Rolf. That is a change. That was toned down bec

Re: [Jmol-users] Demo Electron Density Maps! - Mouse Behaviour

2010-01-19 Thread Robert Hanson
Mouse wheel -- right, Rolf. That is a change. That was toned down because it was just way too difficult to control (in my opinion), but we can revert that if you think what we have now is just too slow. Let's talk about that. Since I don't have a mouse wheel, I'm probably not the one to ask, but th

Re: [Jmol-users] Demo Electron Density Maps! - Mouse Behaviour

2010-01-19 Thread Rolf Huehne
On 01/18/2010 09:03 PM, Eric Martz wrote: > I have made a little demonstration of visualization electron density maps in > Jmol, showing off some of Bob's recent innovations. > http://www.umass.edu/molvis/tests/jmol_edm_test4/ > > This new capability of Jmol is just fantastic! > I agree! While