[Chimera-users] axis-axis distance definition

[Elaine Meng]

> On Aug 13, 2015, at 4:46 PM, Oliver Clarke <olibclarke at gmail.com> wrote:
> 
> Actually never mind, it seems to be the minimum distance between the axes as displayed. The minimum distance between infinite axes might also be a useful measurement when looking at conformational changes, as it is not dependent upon the axis length (e.g. if helices are of slightly different lengths between two otherwise homologous structures).
> 
> Oliver.

Yes, currently:

"For distance measurements, axes are treated as finite line segments, while planes are treated as infinite.”

<http://www.rbvi.ucsf.edu/chimera/docs/UsersGuide/midas/distance.html>

Elaine