GraphViz

Graphviz

Documentation

• http://www.graphviz.org
• http://www.graphviz.org/Documentation/dotguide.pdf
• http://www.tonyballantyne.com/graphs.html
• http://www.graphviz.org/doc/fontfaq.txt
• http://stackoverflow.com/questions/tagged/graphviz
• http://graphs.grevian.org/reference

Mediawiki Graphviz extension

GraphViz MediaWiki extension

Fiddles

• http://sandbox.kidstrythisathome.com/erdos/
• http://www.webgraphviz.com/

Examples

Graph

<graphviz format='svg'>
graph development { 
  Stakeholder -- Requirements; 
  Requirements -- Samplecases;
  Requirements -- Model;
  Model -- Code;
}
</graphviz>

Hierarchy

<graphviz>
digraph hierarchy {
  nodesep=1.0 // increases the separation between nodes
             
  node [color=Red,fontname=Courier,shape=box] //All nodes will this shape and colour
  edge [color=Blue, style=dashed] //All the lines look like this

  Model->{Package1 Package2 System}
  Package1->{Class1 Class2}
  System->Subsystem
  {rank=same;Subsystem Class1 Class2}  // Put them on the same level
}
</graphviz>

HTML labels

digraph G {
  "Record" [ label=<<table>
              <tr>
                <td>A</td>
                <td bgcolor='#00CC11'>B</td>
               </tr>
              </table> 
             >
 ];
}

Images

UML

digraph obj{
  nodesep=1.0 // increases the separation between nodes
  node[shape=record, color="#FF8000", fontname = "Technical"];
  rankdir="BT";
        
  teacher [label = "{<f0> Teacher|<f1> name\n  |<f2> \n   }"];
  course [label = "{<f0> Course|<f1>title \n  |<f2> \n   }"];
  student [label = "{<f0> Student|<f1>name \n  |<f2> \n   }"];
  lesson [label = "{<f0> Lesson |<f1> \n  |<f2> \n   }"];
  tutorial [label = "{<f0> Tutorial|<f1> \n  |<f2> \n   }"];
  assessment[label = "{<f0> Assessment|<f1> \n  |<f2> \n   }"];
  coursework [label = "{<f0> Coursework|<f1> \n  |<f2> \n   }"];
  exam [label = "{<f0> Exam|<f1> \n  |<f2> \n   }"];

  teacher->course [dir="forward",arrowhead="none",arrowtail="normal",headlabel=" 1",taillabel=" 1.."];
  student->course [dir="forward",arrowhead="none",arrowtail="normal",headlabel=" 1",taillabel=" 1.."];
  lesson->course [dir="forward",arrowhead="diamond",arrowtail="normal"];
  tutorial->course [dir="forward",arrowhead="diamond",arrowtail="normal"];
  assessment->course [dir="forward",arrowhead="diamond",arrowtail="normal"];
  coursework->assessment;
  exam->assessment;

  {rank=same; teacher course student};
}