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"""
Simple example for rendering a graph with the Django web framework.
See
http://www.djangoproject.com/
and
http://www.djangobook.com/en/beta/chapter11/
"""
# Copyright (C) 2007 by
# Aric Hagberg <hagberg@lanl.gov>
# Dan Schult <dschult@colgate.edu>
# Manos Renieris, http://www.cs.brown.edu/~er/
# Distributed with BSD license.
# All rights reserved, see LICENSE for details.
__author__ = """Aric Hagberg (hagberg@lanl.gov)"""
try:
from django.http import HttpResponse
except ImportError: # this won't run without Django, print message
print("Django not found.")
def pygraphviz_graph(request):
import pygraphviz as P
A = P.AGraph() # init empty graph
# set some default node attributes
A.node_attr["style"] = "filled"
A.node_attr["shape"] = "circle"
# Add edges (and nodes)
A.add_edge(1, 2)
A.add_edge(2, 3)
A.add_edge(1, 3)
A.layout() # layout with default (neato)
png = A.draw(format="png") # draw png
return HttpResponse(png, mimetype="image/png")
if __name__ == "__main__":
print(
"""This code works with the Django web framework
and should run as a django "view".
See djangoproject.com for info.
"""
)
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