alexandra,

i was just able to load a molecule into pymol and set its tube radius to XYZ by doing the following:

hide everything
cartoon tube, all
show cartoon, all
set cartoon_tube_radius, XYZ

another thing which you can try if you want variable (residue-specific) tube thicknesses which are scaled by b-factor fields is to use the "putty" representation (try "cartoon putty, all" and then color by spectrum on b-factors).

disclaimer is that this was all in pymol v0.98 on linux... (i don't know about macpymol).

good luck,
cameron


=== pymol-users-request@lists.sourceforge.net wrote (on 07/14/2005 08:13 PM): ===
Subject:
[PyMOL] tube thickness
From:
Alexandra Deaconescu <deacona@mail.rockefeller.edu>
Date:
Thu, 14 Jul 2005 14:13:23 -0400
To:
pymol-users@lists.sourceforge.net
To:
pymol-users@lists.sourceforge.net

Dear all,

Is there a way to adjust the cartoon tube thickness in Pymol? I have tried using cartoon_tube_radius but it does not seem to work. I am using MacPymol version 0.95.

Thank you very much in advance,
Alexandra