windsim

WindSim object

The WindSim object allows to simulate the wind conditions, such as wind speed and wind direction at a given position and altitude. WindSim inherits from its parent class Windfield and has the following properties and methods:

WindSim properties

Name	Value	Description
altmax	13,716 m	maximum altitude of 45000 ft
altstep	30.48 m	altitude step of 100 ft (flight level)
altaxis	-	array of altitudes from 0 to altmax
idxalt	-	array of altitude/flight levels ids
nalt	integer	total number of altitudes/flight levels
iprof	-	list of indices of points with an altitude profile

WindSim methods

WindSim object can be accessed from the traffic module:

from bluesky.traffic.windsim import WindSim
wind = WindSim()

Wind vector can be defined as a part of the wind field using method add:

wind.add(52, 4, 0, 270, 50)
# the last three arguments can be repeated
wind.add(52, 4, 0, 270, 50, 1000, 300, 60)

add arguments

Name	Unit	Description
lat	deg	latitude
lon	deg	longitude
alt	ft	altitude
winddir	deg	wind direction
windspd	kt	wind speed

Wind conditions can be retrieved using method get:

wind.get(52, 4, 0)
>>> WIND AT 52.00000, 4.00000: 270/50

add arguments

Name	Unit	Description
lat	deg	latitude
lon	deg	longitude
alt	ft	altitude