Annotated GML file

Graph in GML format

graph [

  id 1
  label "This is the label of the graph"
  
  node [
  
    id 1
    label "This is the label of the node"
    
    graphics [
      x 10.0
      y 10.0
    ]
  ]
  
  edge [
  
    source 1
    target 2
    label "This is the label of the edge"
    
    graphics [
      line [
        point [
          x 10.0
          y 10.0
        ]
        point [
          x 10.0
          y 20.0
        ]
        point [
          x 20.0
          y 20.0
        ]
      ]
    ]
  ]
]

Descriptions

graph (list)

The tag graph starts a new graph. Common tags within graph are node and edge.

node (list)

The tag node starts a new node. Common tags within node are id, label and graphics.

edge (list)

The tag edge starts a new edge. Common tags within edge are source, target, label, and graphics.

id (integer)

id defines an identifier for an object. The values of id tags must be unique under certain constraints (for example, there may not be two nodes with the same id). Details are defined in the manual.

label (string)

label defines a textual label attached to an object. Typically, labels are attached to node or edge.

graphics (list)

graphics defines the graphical representation of a graph, node or edge. Graphlet defines a separate tag LabelGraphics which optionally defines the graphical representation of the label.

center (list)

center defines the center of an object, typically a node. center contains x, y and optionally z.

point (list)

point defines a point. point contains x, y and optionally z.

line (list)

line defines a polyline, typically to describe an edge. line contains point objects.

x (double)

In context of graphics or point, x defines an x coordinate.

y (double)

In context of graphics or point, y defines an y coordinate.

z (double)

In context of graphics or point, z defines an z coordinate.

h (double)

In context of graphics, h defines the height of an object.

w (double)

In context of graphics, w defines the width of an object. It is usually used in combination with center to define the geometry of an object.