Molden Laplacian Plot options.



 Hello Everybody,
 We have an interest in our laboratory in examining the bonding in rare gas
 containing molecules through experiment.  Accordingly we have begun
 supplementing our experimental work with theoretical calculations and in
 particular producing electron density plots of our molecules and also
 examing the laplacian plots, all using Molden.
 Of increasing interest is the Laplacian.  Molden has
 4 plot options for the laplacian, i'm sure many of you will know
 these are:  Euclid, 3D, 3D-X and Space.
 I can interpret the Euclid and 3D type plots (well just about anyway!) and
 these appear to be the common way of presenting this type of information.
 My question is how should one interpret the "Space plot" of the
 Laplacian?
 I have examined the online documentation and have not been successful in
 finding any help.
 Thank you for your time,
 Best wishes,
 Steve Cooke
 Chemistry Department
 The University of British Columbia
 Vancouver
 Canada
 sacooke : at : chem.ubc.ca
 Tel:  (604) 822-2129
 Fax:  (604) 822-2847