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

[Eric Pettersen]

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> 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>
> 
> 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> 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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