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Simple generation of graph images using dot (and cl-dot)
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| (defclass dwim-graph () ()) | |
| (defmethod cl-dot:graph-object-node ((graph (eql 'dwim-graph)) object) | |
| (make-instance 'cl-dot:node | |
| :attributes (list :label (format nil "~A" object) | |
| :shape :circle))) | |
| (defmacro dwim-graph ((file &key (directed t)) &body edges) | |
| `(progn | |
| (eval-when (:compile-toplevel :load-toplevel :execute) | |
| (defmethod cl-dot:graph-object-edges ((graph (eql 'dwim-graph))) | |
| ,(coerce (mapcar (lambda (edge) | |
| (destructuring-bind (beg end &rest args) edge | |
| (append (list beg end) | |
| (unless directed `((:arrowhead :none))) | |
| args))))) | |
| edges) | |
| 'vector))) | |
| (cl-dot:dot-graph | |
| (cl-dot:generate-graph-from-roots 'dwim-graph () '(:rankdir "LR")) | |
| ,file | |
| :format (intern (or (etypecase ,file | |
| (pathname (pathname-type ,file)) | |
| (string (let ((dot-pos (position #\. ,file | |
| :from-end t))) | |
| (when dot-pos | |
| (subseq ,file (1+ dot-pos)))))) | |
| "jpg") | |
| :keyword)) | |
| ,file)) | |
| #+directed-weighted-graph | |
| (dwim-graph ("/tmp/g.jpg") | |
| (0 1 4) | |
| (0 2 4) | |
| (1 3 4) | |
| (1 4 1) | |
| (2 3 2) | |
| (2 4 2) | |
| (3 5 3) | |
| (4 5 5)) | |
| #+undirected-unweighted-graph | |
| (dwim-graph ("/tmp/g.jpg" :directed nil) | |
| (0 1) | |
| (0 2) | |
| (1 3) | |
| (1 4) | |
| (2 3) | |
| (2 4) | |
| (3 5) | |
| (4 5)) |
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