Flag specifying boundary conditions on the simulation box.
imcon = 0: Unbounded domain. While not explicitly enforced this
is useful only for a single molecule. The dynamics is performed in the
c.o.m. frame of reference.
imcon = 1: PBC along x, y, & z. There are no restrictions on
the number of molecules.
Nodes of different colours represent the following:
Solid arrows point from a procedure to one which it calls. Dashed
arrows point from an interface to procedures which implement that interface.
This could include the module procedures in a generic interface or the
implementation in a submodule of an interface in a parent module.
Where possible, edges connecting nodes are
given different colours to make them easier to distinguish in
large graphs.