Has the syntax
style is present, it must be one of the strings:
"regular": place nodes regularly about a circle
"self": run an abbreviated version of neato to obtain the initial layout
"random": place nodes randomly in a unit square.
seed is present, it specifies a seed for the random number generator. If
seed is a positive number, this is used as the seed. If it is anything
else, the current time, and possibly the process id, is used to pick a seed,
thereby making the choice more random. In this case, the seed value is stored
in the graph.
If the value is just
"random", a time-based seed is chosen.
Note that input positions, specified by a node’s
pos attribute, are
only used when the style is
startTypeis a valid type for: