Re: [Jmol-users] Jmol 11.3.9 -- symmetry "range" and applet synchronization

[Bob H. <ha...@st...>]

Timothy Driscoll wrote:

>On Aug 7, 2007, at 11:32 PM, Bob Hanson wrote:
>
>  
>
>>11.3.9 is ready for release and can be experimented with at
>>
>>http://chemapps.stolaf.edu/jmol/docs/examples-11
>>
>>new "synchronize" command
>>-------------------------
>>
>>An idea that has been bouncing around for way too long is a good  
>>way to
>>get a Jmol applet to synchronize with another -- so that when you  
>>rotate
>>one, the other rotates as well. Happy to say this is now possible. It
>>turned out way more complex than I had hoped, but I think the end  
>>result
>>is going to be a hit -- provided it works on Macs. We'll see. Please
>>test this. You can check it out at
>>http://chemapps.stolaf.edu/jmol/docs/examples-11/sync2.htm.
>>
>>    
>>
>
>hey Bob,
>
>very cool!  I don't have time to test all of the features, but it  
>works ok for me in Safari 2.0.4 (no crashing, desired behavior).
>  
>

That is a relief. Any others with this observation -- that it works OK 
on a Mac?

>the only glitch I have found so far is that 'spin' turns on spinning  
>in both applets, but the right-hand applet quickly falls out of synch  
>with the left (within 15-20 seconds or so).  issuing a 'spin off'  
>stops the left side, but does *not* stop the right side until the  
>orientations are again in synch.
>
>
>tim
>  
>
Ah, yes. That's because the moveTo commands are being queued every 100 
ms, each with a 100 ms time-frame, and they are queued, so the following 
applet can get behind. I've added a ! ahead of the moveto command. What 
this does is replace any pending moveTo with a new one. I think that's 
the proper behavior, anyway. In this way you shouldn't be able to get 
more than 100 ms behind at any time.





-- 
Robert M. Hanson
Professor of Chemistry
St. Olaf College
Northfield, MN
http://www.stolaf.edu/people/hansonr


If nature does not answer first what we want,
it is better to take what answer we get. 

-- Josiah Willard Gibbs, Lecture XXX, Monday, February 5, 1900