[chimerax-users] Error "Cannot determine format for"

[Eric Pettersen]

Okay, in tomorrow's daily build you will be able to just use "format png".

--Eric

> On Oct 8, 2020, at 9:05 AM, Eric Pettersen <pett at cgl.ucsf.edu> wrote:
> 
> Hi Mikael,
> 	Right now, if you don't provide the .png suffix, you have to use a format value of "png image" rather than just "png".  Will probably change that to just "png", but right now your command should be:
> 
> 	save C:\Users\a\Desktop\k format "png image" supersample 4 transparentBackground true
> 
> --Eric
> 
> 	Eric Pettersen
> 	UCSF Computer Graphics Lab
> 
>> On Oct 8, 2020, at 8:01 AM, Elaine Meng <meng at cgl.ucsf.edu <mailto:meng at cgl.ucsf.edu>> wrote:
>> 
>> Hi Mikael,
>> The first one is definitely wrong because you should not include the square brackets in the command.  They are shown in usage descriptions to indicate optional arguments, as explained here:
>> 
>> <http://rbvi.ucsf.edu/chimerax/docs/user/commands/usageconventions.html <http://rbvi.ucsf.edu/chimerax/docs/user/commands/usageconventions.html>>
>> 
>> Make sure the pathname is correct.  Maybe you cannot specify the drive in the pathname (the "C:") ... however, I'm on Mac and can't test this directly, but the other developers would know.  You could try specifying pathname without drive to see where it goes.   On Mac, this works to put a file on the Desktop under my home directory:
>> 
>> save ~/Desktop/blah.png super 4 transparent true
>> 
>> As in my example, you can just specify format with filename suffix (e.g. "k.png") instead of using the format option, but using the format option like you did should also be OK.
>> 
>> I hope this helps,
>> Elaine
>> -----
>> Elaine C. Meng, Ph.D.                       
>> UCSF Chimera(X) team
>> Department of Pharmaceutical Chemistry
>> University of California, San Francisco
>> 
>> 
>>> On Oct 8, 2020, at 12:41 AM, Karjalainen, Mikael <mikael.p.karjalainen at jyu.fi <mailto:mikael.p.karjalainen at jyu.fi>> wrote:
>>> 
>>> Hi! 
>>> I am trying to get transparent  background in png pictures, but it is not working and I get error “Cannot determine format for". Only way to get this is by using command line? I am writing something like:
>>> 
>>> save  C:\Users\a\Desktop\k [ format  png ] [ supersample 4 ] [ transparentBackground  true ]
>>> 
>>> or
>>> 
>>> save C:\Users\a\Desktop\k format png supersample 4 transparentBackground true
>>> Also, I have tried different variations. 
>>> Regards,
>>> Mikael
>> 
>> 
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