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<p>Hi Mikael,</p>
If I use menu File / Save... to save a PNG image it logs a command
in the Log panel that looks like<br>
<br>
save C:/Users/goddard/Desktop/test.png width 746 height 466
supersample 3<br>
<br>
The transparentBackground option is not in the save dialog but at
least this gives you an idea of the format of the command. Most
ChimeraX user interface actions log equivalent commands so looking
at the Log is a good way to see the command syntax.<br>
<br>
Tom<br>
<br>
<br>
<br>
<div class="moz-cite-prefix">On 10/8/2020 9:50 AM, Eric Pettersen
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:1962B3CD-5B87-45C6-98C7-4F617D15C960@cgl.ucsf.edu">
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Okay, in tomorrow's daily build you will be able to just use
"format png".
<div class=""><br class="">
</div>
<div class="">--Eric<br class="">
<div><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 8, 2020, at 9:05 AM, Eric Pettersen
<<a href="mailto:pett@cgl.ucsf.edu" class=""
moz-do-not-send="true">pett@cgl.ucsf.edu</a>> wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
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charset=UTF-8" class="">
<div style="word-wrap: break-word; -webkit-nbsp-mode:
space; line-break: after-white-space;" class="">Hi
Mikael,
<div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Right
now, if you don't provide the .png suffix, you have to
use a <b class="">format</b> value of "png image"
rather than just "png". Will probably change that to
just "png", but right now your command should be:</div>
<div class=""><br class="">
</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>save
C:\Users\a\Desktop\k format "png image" supersample 4
transparentBackground true</div>
<div class=""><br class="">
</div>
<div class="">
<div class="">--Eric</div>
<div class=""><br class="">
</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>Eric
Pettersen</div>
<div class=""><span class="Apple-tab-span" style="white-space:pre"> </span>UCSF
Computer Graphics Lab</div>
<div class=""><br class="">
<blockquote type="cite" class="">
<div class="">On Oct 8, 2020, at 8:01 AM, Elaine
Meng <<a href="mailto:meng@cgl.ucsf.edu"
class="" moz-do-not-send="true">meng@cgl.ucsf.edu</a>>
wrote:</div>
<br class="Apple-interchange-newline">
<div class="">
<div class="">Hi Mikael,<br class="">
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:<br class="">
<br class="">
<<a
href="http://rbvi.ucsf.edu/chimerax/docs/user/commands/usageconventions.html"
class="" moz-do-not-send="true">http://rbvi.ucsf.edu/chimerax/docs/user/commands/usageconventions.html</a>><br
class="">
<br class="">
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:<br class="">
<br class="">
save ~/Desktop/blah.png super 4 transparent
true<br class="">
<br class="">
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.<br
class="">
<br class="">
I hope this helps,<br class="">
Elaine<br class="">
-----<br class="">
Elaine C. Meng, Ph.D. <br
class="">
UCSF Chimera(X) team<br class="">
Department of Pharmaceutical Chemistry<br
class="">
University of California, San Francisco<br
class="">
<br class="">
<br class="">
<blockquote type="cite" class="">On Oct 8,
2020, at 12:41 AM, Karjalainen, Mikael <<a
href="mailto:mikael.p.karjalainen@jyu.fi"
class="" moz-do-not-send="true">mikael.p.karjalainen@jyu.fi</a>>
wrote:<br class="">
<br class="">
Hi! <br class="">
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:<br
class="">
<br class="">
save C:\Users\a\Desktop\k [ format png ] [
supersample 4 ] [ transparentBackground
true ]<br class="">
<br class="">
or<br class="">
<br class="">
save C:\Users\a\Desktop\k format png
supersample 4 transparentBackground true<br
class="">
Also, I have tried different variations. <br
class="">
Regards,<br class="">
Mikael<br class="">
</blockquote>
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