Re: [graphviz-interest] Moving nodes and edges between [sub]graphs using the gv library

On 02/27/2014 04:58 PM, Sparr wrote:
> On Thu, Feb 27, 2014 at 4:28 PM, John Ellson <[email protected]> wrote:
>> On 02/27/2014 04:11 PM, Sparr wrote:
>>> What I would like to do is assemble a graph, then selectively
>>> "promote" certain nodes and edges into subgraphs afterwards.
>> Certainly you can manipulate the attributes of nodes and subgraphs in the
>> abstract graph from one of the language bindings, or from gvpr.
> I am unsure how to apply this answer. Is there an attribute of a node
> that specifies which subgraph it belongs to, or vice versa?

You can obtain a list of member nodes from a subgraph, and add/del nodes 
to a subgraph.

To move you would have to delete from whatever graph it was in before, 
and add to the subgraph.

A node can't be a direct member of more than one subgraph. Subgraphs can 
be added to other subgraphs, forming a tree,
so indirectly a node is a member of all its parent subgraphs, and the 
parent graph.

John
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