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#!/usr/bin/env python
# Eclipse SUMO, Simulation of Urban MObility; see https://eclipse.dev/sumo
# Copyright (C) 2008-2023 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
from sumolib.options import ArgumentParser # 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 ----------
ap = ArgumentParser()
ap.add_argument("-n", "--net", dest="net", category="input", type=ap.net_file, metavar="FILE",
required=True, help="Defines the network to read")
ap.add_argument("--edge-width", dest="defaultWidth", category="visualization",
type=float, default=1, help="Defines the edge width")
ap.add_argument("--edge-color", dest="defaultColor", category="visualization",
default='k', help="Defines the edge color")
ap.add_argument("--minV", dest="minV",
type=float, default=None, help="Define the minimum value boundary")
ap.add_argument("--maxV", dest="maxV",
type=float, default=None, help="Define the maximum value boundary")
ap.add_argument("-v", "--verbose", dest="verbose", action="store_true",
default=False, help="If set, the script says what it's doing")
# standard plot options
helpers.addInteractionOptions(ap)
helpers.addPlotOptions(ap)
# parse
options = ap.parse_args(args=args)
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))
if sys.version_info.major < 3:
# "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, ax=ax)
options.nolegend = True
helpers.closeFigure(fig, ax, options)
if __name__ == "__main__":
try:
main()
except ValueError as e:
sys.exit(e)
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