(defmethod cl-dot:graph-object-node ((graph (eql 'example)) (object cons))
(make-instance 'cl-dot:node
:attributes '(:label "cell \\N"
:shape :box)))
(defmethod cl-dot:graph-object-points-to ((graph (eql 'example)) (object cons))
(list (car object)
(make-instance 'cl-dot:attributed
:object (cdr object)
:attributes '(:weight 3))))
(defmethod cl-dot:graph-object-node ((graph (eql 'example)) (object symbol))
(make-instance 'cl-dot:node
:attributes `(:label ,object
:shape :hexagon
:style :filled
:color :black
:fillcolor "#ccccff")))
(let* ((data '(a b c #1=(b z) c d #1#))
(dgraph (cl-dot:generate-graph-from-roots 'example (list data)
'(:rankdir "LR" :layout "twopi" :labelloc "t"))))
(cl-dot:dot-graph dgraph "test-lr.svg" :format #+nil :x11 :svg))
(let* ((data '(a b))
(dgraph (cl-dot:generate-graph-from-roots 'example (list data)
'(:rankdir "LR"))))
(cl-dot:print-graph dgraph))