source: src/mlx/flight.py@ 133:dcbe33497899

Last change on this file since 133:dcbe33497899 was 89:ef4711a984fe, checked in by István Váradi <ivaradi@…>, 12 years ago

Added the collection of some further statistics and the finish page
File size: 6.3 KB
Line 
1# Module related to the high-level tracking of the flight
2
3#---------------------------------------------------------------------------------------
4
5import const
6import util
7
8import threading
9
10#---------------------------------------------------------------------------------------
11
12class Options(object):
13 """Various configuration options."""
14 def __init__(self):
15 """Construct the object with default values."""
16 self.fs2Crew = False
17 self.compensation = None
18
19#---------------------------------------------------------------------------------------
20
21class Flight(object):
22 """The object with the global flight state.
23
24 It is also the hub for the other main objects participating in the handling of
25 the flight."""
26 def __init__(self, logger, gui):
27 """Construct the flight."""
28 self._stage = None
29 self.logger = logger
30 self._gui = gui
31
32 gui.resetFlightStatus()
33
34 self.flareTimeFromFS = False
35 self.entranceExam = False
36
37 self.options = Options()
38
39 self.aircraftType = None
40 self.aircraft = None
41 self.simulator = None
42
43 self.blockTimeStart = None
44 self.flightTimeStart = None
45 self.flightTimeEnd = None
46 self.blockTimeEnd = None
47
48 self._lastDistanceTime = None
49 self._previousLatitude = None
50 self._previousLongitude = None
51 self.flownDistance = 0.0
52
53 self.startFuel = None
54 self.endFuel = None
55
56 self._endCondition = threading.Condition()
57
58 self._flareStart = None
59 self._flareStartFS = None
60
61 @property
62 def stage(self):
63 """Get the flight stage."""
64 return self._stage
65
66 @property
67 def zfw(self):
68 """Get the Zero-Fuel Weight of the flight."""
69 return self._gui.zfw
70
71 @property
72 def cruiseAltitude(self):
73 """Get the cruise altitude of the flight."""
74 return self._gui.cruiseAltitude
75
76 @property
77 def v1(self):
78 """Get the V1 speed of the flight."""
79 return self._gui.v1
80
81 @property
82 def vr(self):
83 """Get the Vr speed of the flight."""
84 return self._gui.vr
85
86 @property
87 def v2(self):
88 """Get the V2 speed of the flight."""
89 return self._gui.v2
90
91 @property
92 def vref(self):
93 """Get the VRef speed of the flight."""
94 return self._gui.vref
95
96 def handleState(self, oldState, currentState):
97 """Handle a new state information."""
98 self._updateFlownDistance(currentState)
99
100 self.endFuel = sum(currentState.fuel)
101 if self.startFuel is None:
102 self.startFuel = self.endFuel
103
104 def setStage(self, timestamp, stage):
105 """Set the flight stage.
106
107 Returns if the stage has really changed."""
108 if stage!=self._stage:
109 self._stage = stage
110 self._gui.setStage(stage)
111 self.logger.stage(timestamp, stage)
112 if stage==const.STAGE_PUSHANDTAXI:
113 self.blockTimeStart = timestamp
114 elif stage==const.STAGE_TAKEOFF:
115 self.flightTimeStart = timestamp
116 elif stage==const.STAGE_TAXIAFTERLAND:
117 self.flightTimeEnd = timestamp
118 elif stage==const.STAGE_PARKING:
119 self.blockTimeEnd = timestamp
120 elif stage==const.STAGE_END:
121 with self._endCondition:
122 self._endCondition.notify()
123 return True
124 else:
125 return False
126
127 def handleFault(self, faultID, timestamp, what, score):
128 """Handle the given fault.
129
130 faultID as a unique ID for the given kind of fault. If another fault of
131 this ID has been reported earlier, it will be reported again only if
132 the score is greater than last time. This ID can be, e.g. the checker
133 the report comes from."""
134 self.logger.fault(faultID, timestamp, what, score)
135 self._gui.setRating(self.logger.getRating())
136
137 def handleNoGo(self, faultID, timestamp, what, shortReason):
138 """Handle a No-Go fault."""
139 self.logger.noGo(faultID, timestamp, what)
140 self._gui.setNoGo(shortReason)
141
142 def flareStarted(self, flareStart, flareStartFS):
143 """Called when the flare time has started."""
144 self._flareStart = flareStart
145 self._flareStartFS = flareStartFS
146
147 def flareFinished(self, flareEnd, flareEndFS):
148 """Called when the flare time has ended.
149
150 Return a tuple of the following items:
151 - a boolean indicating if FS time is used
152 - the flare time
153 """
154 if self.flareTimeFromFS:
155 return (True, flareEndFS - self._flareStartFS)
156 else:
157 return (False, flareEnd - self._flareStart)
158
159 def wait(self):
160 """Wait for the flight to end."""
161 with self._endCondition:
162 while self._stage!=const.STAGE_END:
163 self._endCondition.wait(1)
164
165 def _updateFlownDistance(self, currentState):
166 """Update the flown distance."""
167 if not currentState.onTheGround:
168 updateData = False
169 if self._lastDistanceTime is None or \
170 self._previousLatitude is None or \
171 self._previousLongitude is None:
172 updateData = True
173 elif currentState.timestamp >= (self._lastDistanceTime + 30.0):
174 updateData = True
175 self.flownDistance += self._getDistance(currentState)
176
177 if updateData:
178 self._previousLatitude = currentState.latitude
179 self._previousLongitude = currentState.longitude
180 self._lastDistanceTime = currentState.timestamp
181 else:
182 if self._lastDistanceTime is not None and \
183 self._previousLatitude is not None and \
184 self._previousLongitude is not None:
185 self.flownDistance += self._getDistance(currentState)
186
187 self._lastDistanceTime = None
188
189 def _getDistance(self, currentState):
190 """Get the distance between the previous and the current state."""
191 return util.getDistCourse(self._previousLatitude, self._previousLongitude,
192 currentState.latitude, currentState.longitude)[0]
193
194#---------------------------------------------------------------------------------------
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