Oops, didn't read my own documentation carefully enough! When using the rgba(N,N,N,N) form only the first three numbers can be whole numbers in the range 0-255, or percentages indicated with % symbols, which I failed to do. The transparency number has to be in the range 0-1. So you would need something like the following, which also works. Tested in daily build and in release 0.92. rgba(20%,90%,90%,0.7) Sorry for the mistake -- I normally use the simpler form: 20,90,90,70 Elaine
On Mar 9, 2020, at 2:18 PM, Elaine Meng <meng@cgl.ucsf.edu> wrote:
Hi Alexis, I can reproduce the problem with reading the pb file transparency using a color specification of the form:
/a:1@c3' /a:1@n3 rgba(20,90,90,70)
However, if I use these alternative forms of transparent color specification, it works, i.e. the pseudobond is transparent:
/a:1@c3' /a:1@n3 20,90,90,70 - OR - /a:1@c3' /a:1@n3 #00ced155
<http://rbvi.ucsf.edu/chimerax/docs/user/commands/colornames.html>
Those atoms are in PDB 1bna, for example. Tested in current daily build I hope this helps, Elaine ----- Elaine C. Meng, Ph.D. UCSF Chimera(X) team Department of Pharmaceutical Chemistry University of California, San Francisco
On Mar 6, 2020, at 10:33 AM, Alexis Rohou <a.rohou@gmail.com> wrote:
Thanks Elaine!
Great - so now I'm using "measure center" to create markers with 0.0000001 radius at the center of my rings with specified modelId's. Then I have a .pb file that specifies the pseudobonds to draw between markers and atoms. That all seems to work pretty well, thanks!
Only little snag right now is I can't seem to get transparency working when the color-spec in the .pb file is in the format rgba(). Setting the transparency after opening the pb file using "transparency" works fine though, so I'm not stuck.
Thanks again for the help.
Cheers, Alexis
On Fri, Mar 6, 2020 at 9:36 AM Elaine Meng <meng@cgl.ucsf.edu> wrote: Here is the more detailed description of pseudobond file format:
<http://rbvi.ucsf.edu/chimerax/docs/user/pseudobonds.html#pbfiles>
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