Simon, although you seem to have the solution, I'd like to give my view
As I understand it, "zoom 100" will fit the model in spacefill into the window, at any rotation angle; maybe yor perception is due to your having a single "best" orientation, for which there may be empty margin left. I do not think the bounding box has any influence. As Eric pointed out, the state of "zoomlarge" is relevant if the Jmol is not square. That said, I am not familiar with your "zoom 0" as it is --although it may well be correct. This is what I would do: zoomto 0.01 {visible} 0; zoomto 0.01 {visible} 0 *1.1; //for a slightly larger model zoomto 0.01 {visible} 0 *0.9; //for a slightly smaller model Those should fit the model to the Jmol window in all cases, for any rotation. 0.01 is a time in seconds, which may be reduced to zero Please see http://chemapps.stolaf.edu/jmol/docs/#zoomto ------------------------------------------------------------------------------ Go from Idea to Many App Stores Faster with Intel(R) XDK Give your users amazing mobile app experiences with Intel(R) XDK. Use one codebase in this all-in-one HTML5 development environment. Design, debug & build mobile apps & 2D/3D high-impact games for multiple OSs. http://pubads.g.doubleclick.net/gampad/clk?id=254741911&iu=/4140 _______________________________________________ Jmol-users mailing list Jmol-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/jmol-users