Re: [Jmol-users] Axis orientation - Step 2

[Jan R. <jr...@im...>]

Miguel Howard schrieb:

>So, RasMol/Chime is right-handed, but it has the +Y axis pointing *down*.
>  
>
no, only the Windows version,
 on Irix RasMol2.7.2.1 shows up with true right-handed annotated axis 
system, but

>(Note that we are going to try to keep this relatively simple by not yet
>introducing the issue of rotations about the axes)
>  
>
that is a problem,
though rotation on x and z are as expected, y rotation is not on Irix 
(but it is in agreement with with the wrong axis annotation in RasWin)
this should be corrected in RasMol and RasWin, too.

>What do people think we should do about it?
>
> 1. Maintain RasMol/Chime compatibility ... +Y points down
>     - RasMol/Chime users are used to seeing their molecules
>       in this orientation
>     - won't break existing scripts
>     - nobody really cares, just leave it alone
>  
>
> 2. Break RasMol/Chime compatibility ... +Y points up
>     - this is the way it should have been done in the
>       first place, we have an opportunity to fix it,
>       let's not propogate errors
>     - if someone *really* needs to see their molecules
>       in the RasMol/Chime orientation they can just do a
>       'rotate x 180'
>  
>
I vote for 2 don't pollute the Jmol code with bugs.
Regards, Jan

> 3. Support both
>     - just add a switch/script command to Jmol
>     - it is easy to do ... Jmol already does both
>     - Q: What should the *default* orientation be?
>     - Q: What do you call this switch in a menu?
>     - Q: Any proposal for what the script command should be?
>
>
>Miguel
>  
>