Re: your mail

From: Aaron Oakley (s_aarono@eduserv.its.unimelb.EDU.AU)
Date: Wed Apr 10 1996 - 18:39:23 CDT


> 
> I have two questions regarding usage of O:
> 
> (1) My machine is Indigo2 with extreme graphics, running on IRIX 5.3. I am
>     using dials to adjust fragment of a molecule. I have difficult in
>     positioning the fragment to a precise location, i.e., it "jumps around"
>     the point (both rotation and translation). Does anyone know how to get
>     around the problem?

It sounds to me that the dials are too sensitive. Change the value of the
data block .dial_real to something less than 1 (say, 0.3):

  O > db_se_data
 Heap> Full name of data block: .dial_real
 Heap> Start and end entries [1 1 ]: 1 1
 Heap> Changing entries 1 to 1 of data block .dial_real
 Heap> Enter value (must be type R): 0.3

> (2) How to use Tor_general?
> 

say you have the following bonds:

 CA---CB---CG---CD---NE---CZ

If you want to rotate the side chain around the three bonds defined
by CB---CG---CD---NE, first click on CA and then on CZ. Three dials
will then allow rotation around the bonds.

Hope this helps,

Aaron



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