[Chimera-users] Helix axis and correction

Hello everyone, I have a question about the "helical correction" option for calculating helix axes. I've been trying to find the exact calculation Chimera uses to correct the helix axis, but I couldn't find anything specific in the archives and I also couldn't figure it from the source code. Where can I find a detailed description of how the helix axes and the corresponding corrections are calculated? Thanks for your help, Alican Gulsevin, PhD Postdoctoral Researcher Vanderbilt University Department of Chemistry Center for Structural Biology - Meiler Laboratory 465 21st Ave South Nashville, TN,37221 Office: MRBIII, Room: 5150C Phone: (615)-936-6594