The pos
attribute is only usefule when using neato
or fdp
- from here:
In neato and fdp, pos can be used to set the initial position of a node.
For neato, typically the -n
option is needed to make use of the pos
values - from this page :
If set, neato assumes nodes have already been positioned and all nodes have a pos attribute giving the positions.
Therefore, this isn't possible. The linked answer may prove helpful in case you can start with the full graph and hide nodes instead of adding new ones.