Y pointing up, and Z sticking out. The sense of rotation is righthanded for X and Z and lefthanded for Y as shown in the following graph. This means each ROTA command is applied to the view of the structure, as it exists at this stage. If a VIEW instruction is given, rotations start from the directions given by that instruction. This is true, even if ROTA commands physically precede the VIEW command.
All data given here refer to the unit vectors of the unit cell.
The range for the circles must lie within the range for the polyhedra. If only the range for the polyhedra is given, this range will be taken also for the circles. If circles appear not to be drawn completely, change RES and NRES in PARA . If the numbers follow each other in direct sequence they may be given as A -B, where A and B are the first and last numbers in this sequence. If an excluded atom belongs to a polyhedron the whole polyhedron will be omitted.