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comparison python/traffic_engineering.py @ 652:3b13ec964476

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removed useless and buggy code
author Nicolas Saunier <nicolas.saunier@polymtl.ca>
date Fri, 24 Apr 2015 17:02:47 +0200
parents 850ed17c7b2f
children 15e244d2a1b5
comparison
equal deleted inserted replaced
651:335f6641bf7a 652:3b13ec964476
24 h = expovariate(flow) 24 h = expovariate(flow)
25 headways.append(h) 25 headways.append(h)
26 totalTime += h 26 totalTime += h
27 return headways 27 return headways
28 28
29 class Vehicle: 29 class RoadUser:
30 '''Generic vehicle class 30 '''Simple example of inheritance to plot different road users '''
31 1D coordinates for now''' 31 def __init__(self, position, velocity):
32 class PredictedTrajectory1D(prediction.PredictedTrajectory): 32 'Both fields are 2D numpy arrays'
33 def __init__(self, initialPosition, initialSpeed, control, maxSpeed = None): 33 self.position = position.astype(float)
34 self.control = control 34 self.velocity = velocity.astype(float)
35 self.maxSpeed = maxSpeed 35
36 self.probability = None 36 def move(self, deltaT):
37 self.predictedPositions = {0: moving.Point(initialPosition)} 37 self.position += deltaT*self.velocity
38 self.predictedSpeedOrientations = {0: moving.NormAngle(initialSpeed, 0)} 38
39 39 def draw(self, init = False):
40 def setAcceleration(self, acceleration): 40 from matplotlib.pyplot import plot
41 self.control = moving.NormAngle(acceleration, 0) 41 if init:
42 42 self.plotLine = plot(self.position[0], self.position[1], self.getDescriptor())[0]
43 def getControl(self): 43 else:
44 return self.control 44 self.plotLine.set_data(self.position[0], self.position[1])
45 45
46 46
47 def __init__(self, initialPosition = 0, initialSpeed = 0, acceleration = 0, prt = 2.5, leader = None): 47 class PassengerVehicle(RoadUser):
48 self.positions = PredictedTrajectory1D(initialPosition, initialSpeed) 48 def getDescriptor(self):
49 49 return 'dr'
50 self.prt = prt 50
51 self.leader = leader 51 class Pedestrian(RoadUser):
52 # todo add microModel (Treiber) 52 def getDescriptor(self):
53 53 return 'xb'
54 def setAcceleration(self, acceleration): 54
55 self.positions.setAcceleration(acceleration) 55 class Cyclist(RoadUser):
56 56 def getDescriptor(self):
57 def updatePosition(self, dt): # knowledge of time outside of vehicle ?? 57 return 'og'
58 speed = self.speed 58
59 self.speed += self.acceleration*dt
60 self.position += speed*dt
61 if self.log:
62 self.positions.append(self.position)
63 self.speeds.append(self.speed)
64 self.accelerations.append(self.acceleration)
65
66 def updateAcceleration(self, dt):
67 '''Updates acceleration and speed as a function of leader
68 and other factors'''
69 pass
70
71 def update(self, dt):
72 self.updatePosition(dt)
73 self.updateAcceleration(dt) # function of leader
74
75 def printStats(self):
76 print('{0} {1} {2}'.format(self.position, self.speed, self.acceleration))
77 59
78 ######################### 60 #########################
79 # fundamental diagram 61 # fundamental diagram
80 ######################### 62 #########################
81 63