On Apr 13, 2010, at 8:58 AM, Elaine Meng wrote:

(b) peptide dihedrals. The phi,psi,chiN values for amino acid residues are automatically assigned as attributes. You can save an attribute (list of values) to a file from the Render by Attribute tool.
<http://www.cgl.ucsf.edu/chimera/docs/ContributedSoftware/render/render.html#saving>

Also, a short Python script could be used for this:

from chimera import openModels, Molecule

for m in openModels.list(modelTypes=[Molecule]):

for r in m.residues:

print r, r.chi1

If you save the above in a file ending in .py and open it in Chimera (e.g. File...Open, or the "open" command) then the chi1 angles of all residues will be printed to the reply log.

--Eric