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#!/usr/bin/env python
# Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.org/sumo
# Copyright (C) 2008-2020 German Aerospace Center (DLR) and others.
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# https://www.eclipse.org/legal/epl-2.0/
# This Source Code may also be made available under the following Secondary
# Licenses when the conditions for such availability set forth in the Eclipse
# Public License 2.0 are satisfied: GNU General Public License, version 2
# or later which is available at
# https://www.gnu.org/licenses/old-licenses/gpl-2.0-standalone.html
# SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
# @file plot_net_speeds.py
# @author Daniel Krajzewicz
# @author Michael Behrisch
# @date 2014-02-19
from __future__ import absolute_import
from __future__ import print_function
import os
import sys
if 'SUMO_HOME' in os.environ:
sys.path.append(os.path.join(os.environ['SUMO_HOME'], 'tools'))
else:
sys.exit("please declare environment variable 'SUMO_HOME'")
import sumolib # noqa
from sumolib.visualization import helpers # noqa
import matplotlib.pyplot as plt # noqa
import matplotlib # noqa
def main(args=None):
"""The main function; parses options and plots"""
# ---------- build and read options ----------
from optparse import OptionParser
optParser = OptionParser()
optParser.add_option("-n", "--net", dest="net", metavar="FILE",
help="Defines the network to read")
optParser.add_option("--edge-width", dest="defaultWidth",
type="float", default=1, help="Defines the edge width")
optParser.add_option("--edge-color", dest="defaultColor",
default='k', help="Defines the edge color")
optParser.add_option("--minV", dest="minV",
type="float", default=None, help="Define the minimum value boundary")
optParser.add_option("--maxV", dest="maxV",
type="float", default=None, help="Define the maximum value boundary")
optParser.add_option("-v", "--verbose", dest="verbose", action="store_true",
default=False, help="If set, the script says what it's doing")
# standard plot options
helpers.addInteractionOptions(optParser)
helpers.addPlotOptions(optParser)
# parse
options, remaining_args = optParser.parse_args(args=args)
if options.net is None:
print("Error: a network to load must be given.")
return 1
if options.verbose:
print("Reading network from '%s'" % options.net)
net = sumolib.net.readNet(options.net)
speeds = {}
minV = None
maxV = None
for e in net._id2edge:
v = net._id2edge[e]._speed
if minV is None or minV > v:
minV = v
if maxV is None or maxV < v:
maxV = v
speeds[e] = v
if options.minV is not None:
minV = options.minV
if options.maxV is not None:
maxV = options.maxV
# if options.logColors:
# helpers.logNormalise(colors, maxColorValue)
# else:
# helpers.linNormalise(colors, minColorValue, maxColorValue)
helpers.linNormalise(speeds, minV, maxV)
for e in speeds:
speeds[e] = helpers.getColor(options, speeds[e], 1.)
fig, ax = helpers.openFigure(options)
ax.set_aspect("equal", None, 'C')
helpers.plotNet(net, speeds, {}, options)
# drawing the legend, at least for the colors
print("%s -> %s" % (minV, maxV))
sm = matplotlib.cm.ScalarMappable(
cmap=matplotlib.cm.get_cmap(options.colormap), norm=matplotlib.colors.Normalize(vmin=minV, vmax=maxV))
# "fake up the array of the scalar mappable. Urgh..."
# (pelson, http://stackoverflow.com/questions/8342549/matplotlib-add-colorbar-to-a-sequence-of-line-plots)
sm._A = []
plt.colorbar(sm)
options.nolegend = True
helpers.closeFigure(fig, ax, options)
if __name__ == "__main__":
sys.exit(main(sys.argv))
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