[Chimera-users] Question about background transparency

Elaine Meng meng at cgl.ucsf.edu
Tue Mar 28 09:46:09 PST 2006

Hi Scott,
Tom beat me to the punch, but I'll send this anyway!

The options that start with "--" are meant to be used when starting  
Chimera from the system command line, not in the command line within  
Chimera.  It sounds like you already looked at the man page  
describing --bgopacity and other such options:

How to start Chimera from the system command line is described in the  
startup man page (URL below). On Windows, instead of using the system  
command line, you could use options by editing the Properties of the  
shortcut to Chimera, also described in this man page:

On Windows, for example, if chimera was installed in the default  
location, you could add the option to the end of the startup command:
  "C:\Program Files\Chimera\bin\chimera.exe" --bgopacity

On a Mac, for example, you could enter in the terminal:
  /Applications/Chimera.app/Contents/MacOS/chimera --bgopacity

A potential hitch is that not all computers will have the hardware to  
support the option.

On Mar 28, 2006, at 9:11 AM, Weldon, Scott wrote:

> Hello,
> I’m not having any luck using command line to change the background  
> to transparent. I’ve tried “—bgopacity” and “bgopacity” and both  
> say it is not a valid command. Would you please provide the exact  
> syntax that should be entered to achieve this? Does this need to be  
> entered before the PDB file is opened?
> Thank you for your help,
> Scott Weldon, M.A.
> Supervisor, Medical Illustrator
> Division of Cardiothoracic Surgery
> Michael E. DeBakey Department of Surgery
> Baylor College of Medicine
> One Baylor Plaza, BCM 390
> Houston, TX 77030
> TEL: (832) 355-9941
> FAX: (832) 355-9948
> E-mail: sweldon at bcm.edu
> _______________________________________________
> Chimera-users mailing list
> Chimera-users at cgl.ucsf.edu
> http://www.cgl.ucsf.edu/mailman/listinfo/chimera-users

Elaine C. Meng, Ph.D.                          meng at cgl.ucsf.edu
UCSF Computer Graphics Lab and Babbitt Lab
Department of Pharmaceutical Chemistry
University of California, San Francisco

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