def live_kml(cls, kml, timespan):
users = User.objects.all()
for user in users:
period_logs = UasTelemetry.by_user(user)\
.filter(timestamp__gt=timezone.now() - timespan)
if len(period_logs) < 1:
continue
linestring = kml.newlinestring(name=user.username)
coords = []
for entry in period_logs:
pos = entry.uas_position.gps_position
# Spatial Coordinates
coord = (pos.longitude, pos.latitude,
units.feet_to_meters(entry.uas_position.altitude_msl))
coords.append(coord)
linestring.coords = coords
linestring.altitudemode = AltitudeMode.absolute
linestring.extrude = 1
linestring.style.linestyle.color = Color.blue
linestring.style.polystyle.color = Color.changealphaint(
100, Color.blue)
def live_kml(cls, kml, timespan):
users = User.objects.all()
for user in users:
period_logs = UasTelemetry.by_user(user)\
.filter(timestamp__gt=timezone.now() - timespan)
if len(period_logs) < 1:
continue
linestring = kml.newlinestring(name=user.username)
coords = []
for entry in period_logs:
pos = entry.uas_position.gps_position
# Spatial Coordinates
coord = (pos.longitude, pos.latitude,
units.feet_to_meters(entry.uas_position.altitude_msl))
coords.append(coord)
linestring.coords = coords
linestring.altitudemode = AltitudeMode.absolute
linestring.extrude = 1
linestring.style.linestyle.color = Color.blue
linestring.style.polystyle.color = Color.changealphaint(100,
Color.blue)
def kml(cls, user, logs, kml, kml_doc):
"""
Appends kml nodes describing the given user's flight as described
by the log array given.
Args:
user: A Django User to get username from
logs: A list of UasTelemetry elements
kml: A simpleKML Container to which the flight data will be added
kml_doc: The simpleKML Document to which schemas will be added
Returns:
None
"""
# KML Compliant Datetime Formatter
kml_datetime_format = "%Y-%m-%dT%H:%M:%S.%fZ"
icon = 'http://maps.google.com/mapfiles/kml/shapes/airports.png'
threshold = 1 # Degrees
kml_folder = kml.newfolder(name=user.username)
flights = TakeoffOrLandingEvent.flights(user)
if len(flights) == 0:
return
logs = filter(lambda log: cls._is_bad_position(log, threshold), logs)
for i, flight in enumerate(flights):
label = 'Flight {}'.format(i + 1) # Flights are one-indexed
kml_flight = kml_folder.newfolder(name=label)
flight_logs = filter(lambda x: flight.within(x.timestamp), logs)
if len(flight_logs) < 2:
continue
coords = []
angles = []
when = []
for entry in flight_logs:
pos = entry.uas_position.gps_position
# Spatial Coordinates
coord = (pos.longitude, pos.latitude,
units.feet_to_meters(entry.uas_position.altitude_msl))
coords.append(coord)
# Time Elements
time = entry.timestamp.strftime(kml_datetime_format)
when.append(time)
# Degrees heading, tilt, and roll
angle = (entry.uas_heading, 0.0, 0.0)
angles.append(angle)
# Create a new track in the folder
trk = kml_flight.newgxtrack(name='Flight Path')
trk.altitudemode = AltitudeMode.absolute
# Append flight data
trk.newwhen(when)
trk.newgxcoord(coords)
trk.newgxangle(angles)
# Set styling
trk.extrude = 1 # Extend path to ground
trk.style.linestyle.width = 2
trk.style.linestyle.color = Color.blue
trk.iconstyle.icon.href = icon
for obstacle in MovingObstacle.objects.all():
obstacle.kml(path=flight_logs, kml=kml_flight, kml_doc=kml_doc)
def kml(cls, user, logs, kml, kml_doc):
"""
Appends kml nodes describing the given user's flight as described
by the log array given.
Args:
user: A Django User to get username from
logs: A list of UasTelemetry elements
kml: A simpleKML Container to which the flight data will be added
kml_doc: The simpleKML Document to which schemas will be added
Returns:
None
"""
# KML Compliant Datetime Formatter
kml_datetime_format = "%Y-%m-%dT%H:%M:%S.%fZ"
icon = 'http://maps.google.com/mapfiles/kml/shapes/airports.png'
threshold = 1 # Degrees
kml_folder = kml.newfolder(name=user.username)
flights = TakeoffOrLandingEvent.flights(user)
if len(flights) == 0:
return
logs = filter(lambda log: cls._is_bad_position(log, threshold), logs)
for i, flight in enumerate(flights):
label = 'Flight {}'.format(i + 1) # Flights are one-indexed
kml_flight = kml_folder.newfolder(name=label)
flight_logs = filter(lambda x: flight.within(x.timestamp), logs)
if len(flight_logs) < 2:
continue
coords = []
angles = []
when = []
for entry in flight_logs:
pos = entry.uas_position.gps_position
# Spatial Coordinates
coord = (pos.longitude, pos.latitude,
units.feet_to_meters(entry.uas_position.altitude_msl))
coords.append(coord)
# Time Elements
time = entry.timestamp.strftime(kml_datetime_format)
when.append(time)
# Degrees heading, tilt, and roll
angle = (entry.uas_heading, 0.0, 0.0)
angles.append(angle)
# Create a new track in the folder
trk = kml_flight.newgxtrack(name='Flight Path')
trk.altitudemode = AltitudeMode.absolute
# Append flight data
trk.newwhen(when)
trk.newgxcoord(coords)
trk.newgxangle(angles)
# Set styling
trk.extrude = 1 # Extend path to ground
trk.style.linestyle.width = 2
trk.style.linestyle.color = Color.blue
trk.iconstyle.icon.href = icon
for obstacle in MovingObstacle.objects.all():
obstacle.kml(path=flight_logs, kml=kml_flight, kml_doc=kml_doc)
