[Chimera-users] Increase/decrease the sphere

Eric Pettersen pett at cgl.ucsf.edu
Mon Nov 27 11:31:20 PST 2006

	Sphere size is the same as the atom's VDW radius.  You can change  
atom radii with the "vdwdefine" command, or by selecting atoms and  
bringing up the Selection Inspector (click on the button at the lower  
right of the Chimera interface) and typing a new value into the  
"radius:" field.
	Ball and stick size are controlled on a per-model basis.  Use the  
Model Panel (Favorites->Model Panel) and double-click on line with  
the model you want to control.  A dialog listing the attributes of  
that model will come up.  The "ball scale:" field controls the size  
of balls.  It is a fraction that the VDW radius is multiplied by to  
get the ball size (default: 0.25).  The "stick scale:" field controls  
stick size and also a fraction that sticks get multiplied by.  The  
default stick radius is 0.2 angstroms and default stick scale is 1.0,  
so the final default radius is 0.2 angstroms.  The help page for the  
attribute dialog describes why there are two numbers involved if you  
care, and also describes the other attributes if you're interested.

                         Eric Pettersen
                         UCSF Computer Graphics Lab
                         pett at cgl.ucsf.edu

On Nov 27, 2006, at 6:56 AM, tuhin at iitk.ac.in wrote:

> Dear Chimera users,
> Could anybody tell me whether there is a way in chimera to
> increase/decrease the size of the spheres/ball-and-stick in atom  
> display
> (Action-->Atoms/Bonds-->sphere...). The wireframe has an option in  
> "wire
> width", is there something like that for the above two options ??
> Waiting for yours suggestions.
> Thanks in advance.
> Best,
> _______________________________________________
> Chimera-users mailing list
> Chimera-users at cgl.ucsf.edu
> http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users

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