Alan Hewat wrote: >Bob Hanson said: > > >>You can slab and depth ATOMS in any number of directions based on miller >>planes or any other sort of plane you can imagine. >>http://www.stolaf.edu/people/hansonr/gold.spt >> >> > >Ahh, I see. You define a set of planes and then do something like: >"select within(999,plane,$plane1) and within(999,plane,$plane2) and >within(-999,plane,$plane3) and within(-999,plane,$plane4)" >So it's not the slab/depth commands. OK, I'll experiment with that. >But slab/depth does seem to work quite well with surfaces. > > Yes, because that is handled at the very end when the image goes to the screen. Actually, it's just handled in screen coordinates. Essentially no math. Just checking if the "z" coordinate is within range. The other business has to be done earlier, in Cartesian space, and that is a fairly hefty calculation. I suppose it would be possible with isosurfaces, but we'd have to create a whole new way of doing "ands" and "nots" and "ors" -- all that logic with isosurface verticies to do it right. I don't know, maybe it's possible.
Bob >Many thanks, Alan. >________________________ > >_____________________________________ >Dr Alan Hewat, ILL Grenoble, FRANCE <[EMAIL PROTECTED]>fax+33.476.20.76.48 >+33.476.20.72.13 (.26 Mme Guillermet) http://www.ill.fr/dif/people/hewat/ >_____________________________________________________________ > > >------------------------------------------------------------------------- >This SF.net email is sponsored by DB2 Express >Download DB2 Express C - the FREE version of DB2 express and take >control of your XML. No limits. Just data. Click to get it now. >http://sourceforge.net/powerbar/db2/ >_______________________________________________ >Jmol-users mailing list >[email protected] >https://lists.sourceforge.net/lists/listinfo/jmol-users > > ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Jmol-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/jmol-users
