Re: [ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-18 Thread Ian Tickle
James, The IUCr report that Ethan referred to distinguishes carefully between a "symmetry element" and a "symmetry operation". A symmetry element corresponds to a set of coaxial rotation or screw axes (assuming we're limiting the discussion to enantiomorphic space groups) in a unit cell related b

[ccp4bb] Fw: [ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-15 Thread REX PALMER
] Question on Symmetry Axis Notation Convention Hello All, I would like to discuss symmetry axes, but I'm not sure what the notation convention is. For example, I'd like to say something about a 2(1) along the x-axis, but the phrase "the 2(1) symmetry axis along x" is a bit cumber

Re: [ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-15 Thread Ian Clifton
Ethan Merritt writes: > On Thursday, June 14, 2012 12:06:13 pm James Stroud wrote: >> Hello All, >> >> I would like to discuss symmetry axes, but I'm not sure what the >> notation convention is. For example, I'd like to say something about >> a 2(1) along the x-axis, but the phrase "the 2(1) sym

Re: [ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-14 Thread Boaz Shaanan
L.AC.UK Subject: [ccp4bb] Question on Symmetry Axis Notation Convention Hello All, I would like to discuss symmetry axes, but I'm not sure what the notation convention is. For example, I'd like to say something about a 2(1) along the x-axis, but the phrase "the 2(1) symmetry axis a

Re: [ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-14 Thread Ethan Merritt
On Thursday, June 14, 2012 12:06:13 pm James Stroud wrote: > Hello All, > > I would like to discuss symmetry axes, but I'm not sure what the notation > convention is. For example, I'd like to say something about a 2(1) along the > x-axis, but the phrase "the 2(1) symmetry axis along x" is a bit

[ccp4bb] Question on Symmetry Axis Notation Convention

2012-06-14 Thread James Stroud
Hello All, I would like to discuss symmetry axes, but I'm not sure what the notation convention is. For example, I'd like to say something about a 2(1) along the x-axis, but the phrase "the 2(1) symmetry axis along x" is a bit cumbersome to repeat many times or to put in a table. So I'd like a