Bob Hanson wrote: > Rolf, Ah! I know what it is. Alright, this is IMPORTANT. We need lots of > input on this. > > Jmol 11.1 has two perspective models -- 10 and 11. > > set perspectiveModel 10 > > is the default because of compatibility issues with Jmol 10. The problem > with this model is that it is nonlinear. > > set perspectiveModel 11 > > is a linear model, and if you first set that, then you will get the > expected behavior from zoomTo. I'm reticent to make the jump and have > perspectiveModel 11 be the default for Jmol 11 because all along we have > strived for 99% backward compatibility. But at the same time I also feel > that that linearity and zooming capability of the 11 model and the > navigation mode capability are such great improvements to Jmol that it > seems strange to not be able to invoke them without explicitly setting > the perspectiveModel to 11. > > Another big improvement in the perspectiveModel 11 is the handling of > perspective in spacefill. Go ahead and try > > load =1deh > set perspectiveModel 10 > select [CYS]97A,[CYS]100A,[CYS]103A,[CYS]111A,[ZN]375A; > spacefill on > zoomTo (selected) 0 > > then > > zoomTo (selected) 0 *2 > zoomTo (selected) 0 *4 > zoomTo (selected) 0 *6 > > First, notice how nonlinear the zoom is. Now rotate the model with the > mouse and notice how strange the spacefill spheres behave. > Indeed. > Now try: > > load =1deh > set perspectiveModel 11 > select [CYS]97A,[CYS]100A,[CYS]103A,[CYS]111A,[ZN]375A; > spacefill on > zoomTo (selected) 0 > > You should see a dramatic improvement in the spacefill rendering when > you rotate the model with the mouse. > It looks much better. > Now try: > zoomTo (selected) 0 *2 > zoomTo (selected) 0 *4 > zoomTo (selected) 0 *6 > zoomTo (selected) 0 /2 > > THAT's what you were expecting, right? > Yes, that's it! > I just don't know what is right to do. I suggest a vote, after discussion: > > Should Jmol 11.2 be released with perspectiveModel 10 or 11 as the > default? In either case, the alternative model can always be set (once > for any applet) using "set perspectiveModel". > > > Backward compatibility is of course a strong argument. Since the perspectiveModel setting also influences for example the outcome of 'moveto' commands, the new model will most probably break a lot of scripts. For me it would not be a problem to add 'perspectiveModel 11' to the applet start script if we wanted to include it in our Jmol interface.
But all the effects of 'set perspectiveModel' should be pointed out clearly in the documentation. Currently it is only mentioned that a specific setting is needed for 'navigationMode'. I would never have guessed that it would have such drastic effects on zoom, 'moveto', 'show orientation' etc.. Regards, Rolf ------------------------------------------------------------------------- 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
