thirdparty/python-graph/examples/draw.py
author Sverre Rabbelier <srabbelier@gmail.com>
Wed, 26 Nov 2008 23:56:19 +0000
changeset 594 06c2228e39cb
permissions -rw-r--r--
Added the python-graph module http://code.google.com/p/python-graph/ Patch by: Sverre Rabbelier
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#!/usr/bin/env python
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# Copyright (c) 2007-2008 Pedro Matiello <pmatiello@gmail.com>
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# License: MIT (see COPYING file)
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import sys
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sys.path.append('..')
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sys.path.append('/usr/lib/graphviz/python/')
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import graph
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import gv
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# Graph creation
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gr = graph.graph()
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# Add nodes and edges
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gr.add_nodes(["Portugal","Spain","France","Germany","Belgium","Netherlands","Italy"])
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gr.add_node("England")
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gr.add_node("Ireland")
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gr.add_node("Scotland")
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gr.add_node("Wales")
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gr.add_edge("Portugal", "Spain")
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gr.add_edge("Spain","France")
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gr.add_edge("France","Belgium")
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gr.add_edge("France","Germany")
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gr.add_edge("France","Italy",)
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gr.add_edge("Belgium","Netherlands")
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gr.add_edge("Germany","Belgium")
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gr.add_edge("Germany","Netherlands")
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gr.add_edge("England","Wales")
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gr.add_edge("England","Scotland")
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gr.add_edge("Scotland","Wales")
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# Print to DOT Language
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dot = gr.write(fmt='dot')
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print dot
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# Print graph as PNG image
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gvv = gv.readstring(dot)
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gv.layout(gvv,'neato')
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gv.render(gvv,'png','graph.png')