GraphViz: How to connect a node within in a subgraph to the sibling node of the subgraph?

Question

I am using subgraphs (clusters) in Graphviz. Taking help from this link (GraphViz - How to connect subgraphs?), I am able to connect the subgraphs and nodes with each other. However, there is one issue:

Suppose we have a digraph G, which contains a subgraph "cluster1" and a node "node1". Assume "cluster1" contains a single node "node10". Now, I want to connect "node10" with "node1". I am trying the following code:

digraph G {
    compound=true;
    node1;
    subgraph cluster1 {
        node10->node1;    
    }
}

This is giving the output where "node1" is present inside "cluster1". What I want is to have the "node1" outside the "cluster1" and within digraph G.

Kindly help.

Answer 1

Seems that link creation takes ownership of both ends. Then declaring nodes and link separately will work:

digraph G {
    compound=true;
    node1;
    subgraph cluster1 {
        node10
    }
    node10->node1
}

yields