#
# NEPI, a framework to manage network experiments
# Copyright (C) 2013 INRIA
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see .
#
# Author: Alina Quereilhac
import networkx
import os
class PFormats:
DOT = "dot"
FIGURE = "figure"
class ECPlotter(object):
def plot(self, ec, fpath = None, format= PFormats.FIGURE, persist = False):
graph, labels = self._ec2graph(ec)
add_extension = False
if persist and not fpath:
import tempfile
dirpath = tempfile.mkdtemp()
fpath = os.path.join(dirpath, "%s_%s" % (ec.exp_id, ec.run_id))
add_extension = True
if format == PFormats.FIGURE:
import matplotlib.pyplot as plt
pos = networkx.graphviz_layout(graph, prog="neato")
networkx.draw(graph, pos = pos, node_color="white",
node_size = 500, with_labels=True)
label = "\n".join(map(lambda v: "%s: %s" % (v[0], v[1]), labels.iteritems()))
plt.annotate(label, xy=(0.0, 0.95), xycoords='axes fraction')
if persist:
if add_extension:
fpath += ".png"
plt.savefig(fpath, bbox_inches="tight")
else:
plt.show()
elif format == PFormats.DOT:
if persist:
if add_extension:
fpath += ".dot"
networkx.write_dot(graph, fpath)
else:
import subprocess
subprocess.call(["dot", "-Tps", fpath, "-o", "%s.ps" % fpath])
subprocess.call(["evince","%s.ps" % fpath])
return fpath
def _ec2graph(self, ec):
graph = networkx.Graph(graph = dict(overlap = "false"))
labels = dict()
connections = set()
for guid, rm in ec._resources.iteritems():
label = rm.get_rtype()
graph.add_node(guid,
label = "%d %s" % (guid, label),
width = 50/72.0, # 1 inch = 72 points
height = 50/72.0,
shape = "circle")
labels[guid] = label
for guid2 in rm.connections:
# Avoid adding a same connection twice
if (guid2, guid) not in connections:
connections.add((guid, guid2))
for (guid1, guid2) in connections:
graph.add_edge(guid1, guid2)
return graph, labels