Hi Elaine,

I tried it now on my laptop which has 0.8 and both commands work, I'll check maybe on my workstation in my office I have an older version.

Thank you,

Yehuda Halfon

-------- Original Message -------- From: Elaine Meng meng@cgl.ucsf.edu Sent: Sunday, December 9, 2018 06:59 PM To: Yehuda Halfon yehuda.halfon@weizmann.ac.il Subject: Re: [chimerax-users] transparentBackground doesn't seems to work on save CC: chimerax-users@cgl.ucsf.edu

Hi Yehuda, That exact command

save image filename format png transparentBackground true

works for me in the following version:

UCSF ChimeraX version: 0.8 (2018-11-30) UCSF ChimeraX version: 0.7 (2018-08-07)

I get a file named filename.png in ~/Desktop/. Maybe you are using an old version that doesn’t have the option? I think it’s been in there a long time, however. Make sure you are just entering plain text without special characters.

Also shorter versions of command are possible, e.g. save filename.png transparent true … but my testing just now used exactly the same command that you did.

I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco

On Dec 9, 2018, at 2:50 AM, Yehuda Halfon yehuda.halfon@weizmann.ac.il wrote:

Hi all, We are trying to save an image without a background using save image filename format png transparentBackground true but we get the error: transparentBackground expected key word. What are we doing wrong? Thanks, Yehuda Halfon