mongo.gv

digraph G {
  fontname = helvetica; 
  fontsize = 10;
  node [fontname = helvetica; fontsize = 10; style = filled; fillcolor = grey];
  edge [fontname = helvetica; fontsize = 10];
  subgraph cluster0 {
    label = "document";
    c0 [label = "children\n(inbound)"; fillcolor = green];
    h0 [label = "hierarchy"];
    n0 [label = "name"];
    p0 [label = "parent_id\n(outbound)"; fillcolor = lightslateblue];
    r0 [label = "region"];
    c0 -> r0; 
    h0 -> r0;
    h0 -> n0;
    n0 -> r0;
    p0 -> r0;
  } 
  subgraph cluster1 {
    label = "document";
    c1 [label = "children\n(inbound)"; fillcolor = lightslateblue];
    h1 [label = "hierarchy"];
    n1 [label = "name"];
    p1 [label = "parent_id\n(outbound)"; fillcolor = indianred];
    r1 [label = "region"];
    c1 -> r1; 
    h1 -> r1;
    h1 -> n1;
    n1 -> r1;
    p1 -> r1;
  } 
  subgraph cluster2 {
    label = "document";
    c2 [label = "children\n(inbound)"; fillcolor = indianred];
    h2 [label = "hierarchy"];
    n2 [label = "name"];
    p2 [label = "parent_id\n(outbound)"; fillcolor = green];
    r2 [label = "region"];
    c2 -> r2; 
    h2 -> r2;
    h2 -> n2;
    n2 -> r2;
    p2 -> r2;
  }
  p0 -> c1 [label = link; style = dotted];
  p1 -> c2 [label = link; style = dotted];
  p2 -> c0 [label = link; style = dotted];
  h0 -> h1 -> h2 -> h0;
}