TORSION ANGLE CALCULATION
Option for interactive calculation of torsion angles between named
atoms by clicking on them in the desired order.
The atoms involved need not to be bonded.
Note: The clickable atoms are those included in the primary atom list.
This list can be inspected using the LIST ATOMS instruction.
See TORSION KEYBOARD INSTRUCTION
PLATON HOMEPAGE
29-06-2004 A.L.Spek