The label of the edge The size of the font The name of the font The colour of the font They style name The colour of the edge The length of the edge The direction of the edge Draws a line that connects labels with their edges Option value to denote different edges bold, dotted, filled, etc. white, black, blue, etc forward, back, both or none o or 1
alphanumeric be presented in this part. The presented schema is simple; yet you can still understand how elegant it is. By reading the draphviz code you can understand that lines beginning with the # character are comments.
The draphviz code for creating cigure 1 is as follows: