ADDSYM TolRotAxis
This value is used as a criterium to determinine whether pairs of atoms
conform with the tested rotation axis.
The default is 0.25 Angstrom.
PLATON HOMEPAGE
The click positions (from left to right) correspond to 0.5, 0.15, 0.25,
0.35, 0.45 and 0.55 Angstrom
5-Dec-2003 A.L.Spek