GDL: Subgraphs and Regions

• A subgraph is specified within a graph by

  graph: { title: "subgraph title"  subgraph entries }
  

• A region is specified by

  region: { status: folded or boxed
            source: "start node title"
            target: "end node title"
            class: edge class to be folded or boxed
            range: neighbor region range
          }
  

• The class of an edge is specified by

  class: integer
  

• Summary node attributes can be
  defined in the subgraph specification

  graph: {
          graph: {title:"a" bordercolor:red label:"subgraph"}
         }
  // when the subgraph 'a' is folded, it will be
  // represented by a summary node with a red border
  

• Custom summary node/edge attributes are specified by

  foldnode.attribute: value
  foldedge.attribute: value
  // these attributes can only be specified for the top-level graph
  

graph: {foldedge.color: darkred

        node: {title:"1"}  node: {title:"2"}
        node: {title:"3"}  node: {title:"4"}

        graph: {title: "5"  shape: circle  textcolor: red
                node.textcolor: 8  edge.color: 8
                node: {title:"6"}
                node: {title:"7"}
                node: {title:"8"}
                edge: {source:"6" target:"7"}
                edge: {source:"6" target:"8"}
               }

        edge: {source:"1" target:"2"}
        edge: {source:"1" target:"5"}
        edge: {source:"2" target:"3"}
        edge: {source:"2" target:"4"}
       }

graph: {foldedge.color: darkred
        foldnode.textcolor: red

        node: {title:"1"}  node: {title:"2"}
        node: {title:"3"}  node: {title:"4"}
        node: {title:"5"}  node: {title:"6"}
        node: {title:"7"}  node: {title:"8"}

        edge: {source:"1" target:"2"}
        edge: {source:"1" target:"3"}
        edge: {source:"2" target:"4"}
        edge: {source:"2" target:"5"}
        edge: {source:"3" target:"6" class: 1}
        edge: {source:"3" target:"7" class: 1}
        edge: {source:"6" target:"8" class: 2}

        region: {status: folded  source:"3"  class: 1}
       }

• The initial status of a subgraph is specified by

  status: folded or boxed or unfolded or clustered or wrapped
  




• A region may have multiple sources and/or targets

  source: "one" "two" "..." "n"
  target: "One" "Two" "etc" "m"
  

• A region may unite multiple edge classes

  class: 1 28 42 14
  

• Default values

  • foldedge.thickness: 3
    foldedge.label: "..."
    status: unfolded
    

  • The default neighbor region range is 3
    This range can be changed interactively in the View Dialog Box

• Available foldedge/foldnode attributes

  All standard attributes are also available for summary nodes and edges.

• The colon ':' may not be separated from the keyword region:

  region:  { status: folded  source: "3" }   // this is OK
  region : { status: folded  source: "3" }   // this won't work
  

• aiSee supports the following alternative notations:

  state:       // instead of status:
  white        // instead of unfolded
  sourcename:  // instead of source:
  targetname:  // instead of target: