def detect2DCollision(lineSegment, polygon): #(lineSegment:LineSegment) (polygon:Polygon) = # // Check characteristics of the shapes # assertGreaterEqualTo "sides" (float polygon.Length) "3 sides" 3.0 # http://stackoverflow.com/questions/12222700/determine-if-line-segment-is-inside-polygon # first, sort a polygon. Here, polygons are assumed to be sorted already # // Gather the sides for the polygon polygonSides = [] for i in range(len(polygon)): if i == len(polygon) - 1: endPoint = polygon[0] else: endPoint = polygon[i + 1] polygonSides.append(Spatial.LineSegment(polygon[i], endPoint)) axes = polygonSides axes.append(lineSegment) axes = [ Spatial.toUnitVector( Spatial.toNormalVector( Spatial.calculateLocationDifference(v.Location1, v.Location2))) for v in axes ] # // Check for separation between objects separationExists = False for axis in axes: polyProj = projectPolygonOntoAxis(polygon, axis) lineSegmentProj = projectSegmentOntoAxis(lineSegment, axis) #// Do gaps exist between max/min intervals? if polyProj.Min > lineSegmentProj.Max or lineSegmentProj.Min > polyProj.Max: separationExists = True return not separationExists
def calculateMovement(coreFunctions, parameters, weather, state, instruction): # (coreFunctions:SimulationCoreFunctions) # (parameters:FlightParameters) # (weather:WeatherState) (state:FlightState) (instruction:Instruction) time = parameters.ActualGateDepartureTime + state.TimeElapsed*1.0 # <Time/Hours> currentPosition = state.AircraftPosition altitude = Spatial.positionToAltitude(currentPosition) grossWeight = coreFunctions.WeightModel(parameters, state) (destination, instructedAirSpeed) = instruction currentLocation = Spatial.positionToLocation(currentPosition) destinationLocation = Spatial.positionToLocation(destination) destinationAltitude = coreFunctions.AltitudeLimiter(grossWeight, Spatial.positionToAltitude(destination)) airSpeed = coreFunctions.AirSpeedLimiter( parameters.AircraftType.MaximumMachSpeed, grossWeight, altitude, instructedAirSpeed) deltaVector = Spatial.calculateLocationDifference(currentLocation, destinationLocation) distance = Spatial.calculateDistance1(currentLocation, destinationLocation) if distance <= 0.0 : zeroGroundSpeed = Spatial.Vector(0.0, 0.0) return (0.0, zeroGroundSpeed, 0.0, 0.0, 0.0, []) else: #windVector = getWindVelocity(weather, time, currentPosition) windVector = Weather.zeroWindVelocity groundSpeed = Movement.calculateGroundVelocity(airSpeed, Spatial.calculateRadians(deltaVector), windVector) groundVector = Movement.rescale(deltaVector, groundSpeed) (cruiseBurn, verticalCruiseFuelDiff, verticalVelocity) = \ coreFunctions.FuelModel(FuelModel.flightFunctions, grossWeight, altitude, airSpeed, FlightTypes.getVerticalState(altitude, destinationAltitude)) return (cruiseBurn, groundVector, verticalCruiseFuelDiff, verticalVelocity, airSpeed, [])
def calculateMovement(coreFunctions, parameters, weather, state, instruction): # (coreFunctions:SimulationCoreFunctions) # (parameters:FlightParameters) # (weather:WeatherState) (state:FlightState) (instruction:Instruction) time = parameters.ActualGateDepartureTime + state.TimeElapsed * 1.0 # <Time/Hours> currentPosition = state.AircraftPosition altitude = Spatial.positionToAltitude(currentPosition) grossWeight = coreFunctions.WeightModel(parameters, state) (destination, instructedAirSpeed) = instruction currentLocation = Spatial.positionToLocation(currentPosition) destinationLocation = Spatial.positionToLocation(destination) destinationAltitude = coreFunctions.AltitudeLimiter( grossWeight, Spatial.positionToAltitude(destination)) airSpeed = coreFunctions.AirSpeedLimiter( parameters.AircraftType.MaximumMachSpeed, grossWeight, altitude, instructedAirSpeed) deltaVector = Spatial.calculateLocationDifference(currentLocation, destinationLocation) distance = Spatial.calculateDistance1(currentLocation, destinationLocation) if distance <= 0.0: zeroGroundSpeed = Spatial.Vector(0.0, 0.0) return (0.0, zeroGroundSpeed, 0.0, 0.0, 0.0, []) else: #windVector = getWindVelocity(weather, time, currentPosition) windVector = Weather.zeroWindVelocity groundSpeed = Movement.calculateGroundVelocity( airSpeed, Spatial.calculateRadians(deltaVector), windVector) groundVector = Movement.rescale(deltaVector, groundSpeed) (cruiseBurn, verticalCruiseFuelDiff, verticalVelocity) = \ coreFunctions.FuelModel(FuelModel.flightFunctions, grossWeight, altitude, airSpeed, FlightTypes.getVerticalState(altitude, destinationAltitude)) return (cruiseBurn, groundVector, verticalCruiseFuelDiff, verticalVelocity, airSpeed, [])