def build(self):
self.mapview = MapView(zoom=20, lat=45.47375, lon=9.17489, map_source="thunderforest-landscape")
mml = MarkerMapLayer()
self.mapview.add_layer(mml)
self.player_marker = MapMarker(lat=45.47375, lon=9.17489)
self.mapview.add_marker(self.player_marker)
self.update_map()
Clock.schedule_once(lambda *args: self.mapview.center_on(*self.location))
Clock.schedule_interval(self.update_map, 1)
Clock.schedule_interval(lambda *a: mml.reposition(), 0.1)
root = FloatLayout()
root.add_widget(self.mapview)
return root
class Editor(GridLayout):
current_layer = None
edit_last_move = None
markers = []
mode = StringProperty("polygon")
is_editing = BooleanProperty(False)
map_source = ObjectProperty()
geojson_fn = StringProperty()
title = StringProperty()
def __init__(self, **kwargs):
super(Editor, self).__init__(**kwargs)
self.marker_layer = MarkerMapLayer()
self.current_layer = GeoJsonMapLayer()
self.result_layer = GeoJsonMapLayer()
self.result_layer.geojson = kwargs["geojson"]
self.geojson_fn = kwargs["geojson_fn"]
self.ids.mapview.add_widget(self.current_layer)
self.ids.mapview.add_widget(self.result_layer)
self.ids.mapview.add_widget(self.marker_layer)
def on_touch_down(self, touch):
if self.ids.mapview.collide_point(*touch.pos):
if touch.is_double_tap and not self.is_editing:
feature = self.select_feature(*touch.pos)
if feature:
self.edit_feature(feature)
else:
touch.grab(self)
self.forward_to_object(touch)
return True
elif touch.is_double_tap and self.is_editing:
if self.remove_marker_at(touch):
return True
touch.grab(self)
return self.forward_to_object(touch)
elif not self.is_editing:
self.select_feature(*touch.pos)
return self.ids.mapview.on_touch_down(touch)
return super(Editor, self).on_touch_down(touch)
def on_touch_move(self, touch):
if touch.grab_current == self and self.is_editing:
return self.forward_to_object(touch, move=True)
return super(Editor, self).on_touch_move(touch)
def switch_mode(self):
if self.is_editing:
self.finalize_object()
return
self.mode = "line" if self.mode == "polygon" else "polygon"
def forward_to_object(self, touch, move=False):
mapview = self.ids.mapview
if not self.is_editing:
self.is_editing = True
self.clear_markers()
coord = mapview.get_latlon_at(*touch.pos)
if move:
m = self.markers[-1]
else:
m = EditorMarker()
m.mapview = mapview
m.editor = self
self.markers.append(m)
self.marker_layer.add_widget(m)
self.marker_layer.reposition()
m.lat = coord.lat
m.lon = coord.lon
self._update_geojson()
return True
def clear_markers(self):
while self.markers:
self.remove_marker(self.markers.pop())
def remove_marker(self, m):
m.mapview = m.editor = None
self.marker_layer.remove_widget(m)
if m in self.markers:
self.markers.remove(m)
self._update_geojson()
def remove_marker_at(self, touch):
pos = self.ids.mapview.to_local(*touch.pos)
for marker in self.markers[:]:
if marker.collide_point(*pos):
self.remove_marker(marker)
return True
def finalize_object(self):
if self.markers:
geojson = self.current_layer.geojson
if "properties" not in geojson:
geojson["features"][0]["properties"] = {"title": self.title}
else:
geojson["features"][0]["properties"]["title"] = self.title
self.result_layer.geojson["features"].extend(geojson["features"])
self.ids.mapview.trigger_update(True)
self.clear_markers()
self.is_editing = False
self.title = ""
self._update_geojson()
def save_geojson(self):
with open(self.geojson_fn, "wb") as fd:
json.dump(self.result_layer.geojson, fd)
def _update_geojson(self):
features = []
if self.mode == "polygon":
geotype = "Polygon"
geocoords = lambda x: [x]
else:
geotype = "LineString"
geocoords = lambda x: x
# current commited path
if self.markers:
coordinates = [[c.lon, c.lat] for c in self.markers]
features.append({
"type": "Feature",
"properties": {},
"geometry": {
"type": geotype,
"coordinates": geocoords(coordinates)
}
})
geojson = {"type": "FeatureCollection", "features": features}
self.current_layer.geojson = geojson
self.ids.mapview.trigger_update(True)
def point_inside_polygon(self, x, y, poly):
n = len(poly)
inside = False
p1x, p1y = poly[0]
for i in range(n + 1):
p2x, p2y = poly[i % n]
if y > min(p1y, p2y) and y <= max(p1y, p2y) and x <= max(p1x, p2x):
if p1y != p2y:
xinters = (y - p1y) * (p2x - p1x) / (p2y - p1y) + p1x
if p1x == p2x or x <= xinters:
inside = not inside
p1x, p1y = p2x, p2y
return inside
def select_feature(self, x, y):
coord = self.ids.mapview.get_latlon_at(x, y)
for feature in self.result_layer.geojson["features"]:
if feature["type"] != "Feature":
continue
geometry = feature["geometry"]
if geometry["type"] == "Polygon":
if self.point_inside_polygon(coord.lon, coord.lat,
geometry["coordinates"][0]):
return feature
def edit_feature(self, feature):
self.result_layer.geojson["features"].remove(feature)
#self.current_layer.geojson = feature
self.ids.mapview.trigger_update(True)
self.title = feature.get("properties", {}).get("title", "")
self.is_editing = True
self.clear_markers()
for c in feature["geometry"]["coordinates"][0]:
m = EditorMarker(lon=c[0], lat=c[1])
m.mapview = self.ids.mapview
m.editor = self
self.marker_layer.add_widget(m)
self.markers.append(m)
self._update_geojson()
class Editor(GridLayout):
current_layer = None
edit_last_move = None
markers = []
mode = StringProperty("polygon")
is_editing = BooleanProperty(False)
map_source = ObjectProperty()
geojson_fn = StringProperty()
title = StringProperty()
def __init__(self, **kwargs):
super(Editor, self).__init__(**kwargs)
self.marker_layer = MarkerMapLayer()
self.current_layer = GeoJsonMapLayer()
self.result_layer = GeoJsonMapLayer()
self.result_layer.geojson = kwargs["geojson"]
self.geojson_fn = kwargs["geojson_fn"]
self.ids.mapview.add_widget(self.current_layer)
self.ids.mapview.add_widget(self.result_layer)
self.ids.mapview.add_widget(self.marker_layer)
def on_touch_down(self, touch):
if self.ids.mapview.collide_point(*touch.pos):
if touch.is_double_tap and not self.is_editing:
feature = self.select_feature(*touch.pos)
if feature:
self.edit_feature(feature)
else:
touch.grab(self)
self.forward_to_object(touch)
return True
elif touch.is_double_tap and self.is_editing:
if self.remove_marker_at(touch):
return True
touch.grab(self)
return self.forward_to_object(touch)
elif not self.is_editing:
self.select_feature(*touch.pos)
return self.ids.mapview.on_touch_down(touch)
return super(Editor, self).on_touch_down(touch)
def on_touch_move(self, touch):
if touch.grab_current == self and self.is_editing:
return self.forward_to_object(touch, move=True)
return super(Editor, self).on_touch_move(touch)
def switch_mode(self):
if self.is_editing:
self.finalize_object()
return
self.mode = "line" if self.mode == "polygon" else "polygon"
def forward_to_object(self, touch, move=False):
mapview = self.ids.mapview
if not self.is_editing:
self.is_editing = True
self.clear_markers()
coord = mapview.get_latlon_at(*touch.pos)
if move:
m = self.markers[-1]
else:
m = EditorMarker()
m.mapview = mapview
m.editor = self
self.markers.append(m)
self.marker_layer.add_widget(m)
self.marker_layer.reposition()
m.lat = coord.lat
m.lon = coord.lon
self._update_geojson()
return True
def clear_markers(self):
while self.markers:
self.remove_marker(self.markers.pop())
def remove_marker(self, m):
m.mapview = m.editor = None
self.marker_layer.remove_widget(m)
if m in self.markers:
self.markers.remove(m)
self._update_geojson()
def remove_marker_at(self, touch):
pos = self.ids.mapview.to_local(*touch.pos)
for marker in self.markers[:]:
if marker.collide_point(*pos):
self.remove_marker(marker)
return True
def finalize_object(self):
if self.markers:
geojson = self.current_layer.geojson
if "properties" not in geojson:
geojson["features"][0]["properties"] = {"title": self.title}
else:
geojson["features"][0]["properties"]["title"] = self.title
self.result_layer.geojson["features"].extend(geojson["features"])
self.ids.mapview.trigger_update(True)
self.clear_markers()
self.is_editing = False
self.title = ""
self._update_geojson()
def save_geojson(self):
with open(self.geojson_fn, "wb") as fd:
json.dump(self.result_layer.geojson, fd)
def _update_geojson(self):
features = []
if self.mode == "polygon":
geotype = "Polygon"
geocoords = lambda x: [x]
else:
geotype = "LineString"
geocoords = lambda x: x
# current commited path
if self.markers:
coordinates = [[c.lon, c.lat] for c in self.markers]
features.append({
"type": "Feature",
"properties": {},
"geometry": {
"type": geotype,
"coordinates": geocoords(coordinates)
}
})
geojson = {"type": "FeatureCollection", "features": features}
self.current_layer.geojson = geojson
self.ids.mapview.trigger_update(True)
def point_inside_polygon(self, x, y, poly):
n = len(poly)
inside = False
p1x, p1y = poly[0]
for i in range(n + 1):
p2x, p2y = poly[i % n]
if y > min(p1y, p2y) and y <= max(p1y, p2y) and x <= max(p1x, p2x):
if p1y != p2y:
xinters = (y - p1y) * (p2x - p1x) / (p2y - p1y) + p1x
if p1x == p2x or x <= xinters:
inside = not inside
p1x, p1y = p2x, p2y
return inside
def select_feature(self, x, y):
coord = self.ids.mapview.get_latlon_at(x, y)
for feature in self.result_layer.geojson["features"]:
if feature["type"] != "Feature":
continue
geometry = feature["geometry"]
if geometry["type"] == "Polygon":
if self.point_inside_polygon(coord.lon, coord.lat,
geometry["coordinates"][0]):
return feature
def edit_feature(self, feature):
self.result_layer.geojson["features"].remove(feature)
#self.current_layer.geojson = feature
self.ids.mapview.trigger_update(True)
self.title = feature.get("properties", {}).get("title", "")
self.is_editing = True
self.clear_markers()
for c in feature["geometry"]["coordinates"][0]:
m = EditorMarker(lon=c[0], lat=c[1])
m.mapview = self.ids.mapview
m.editor = self
self.marker_layer.add_widget(m)
self.markers.append(m)
self._update_geojson()
class ISSScreen(Screen):
def __init__(self, **kwargs):
super(ISSScreen, self).__init__(**kwargs)
# Set the path for the folder
self.path = os.path.dirname(os.path.abspath(__file__))
# Set the path for local images
self.imagefolder = os.path.join(self.path, "images")
# Ephem calculates the position using the Two Line Element data
# We need to make sure we have up to date info
tle = self.get_TLE()
# Create an iss object from which we can get positional data
self.iss = ephem.readtle(*tle)
# Run the calculations
self.iss.compute()
# Get positon of iss and place a marker there
lat, lon = self.get_loc()
self.marker = MapMarker(lat=lat, lon=lon)
# Create a value to check when we last drew ISS path
self.last_path_update = 0
# Create the path icon
self.path_icon = os.path.join(self.imagefolder, "dot.png")
# Create the world map
self.map = MapView(id="mpv", lat=0, lon=0, zoom=1, scale=1.5)
x, y = self.map.get_window_xy_from(0, 0, 1)
self.map.scale_at(1.2, x, y)
# Add the ISS marker to the map and draw the map on the screen
self.map.add_widget(self.marker)
self.add_widget(self.map)
# Add a new layer for the path
self.mmlayer = MarkerMapLayer()
self.draw_iss_path()
self.timer = None
def on_enter(self):
self.timer = Clock.schedule_interval(self.update, 1)
def on_leave(self):
Clock.unschedule(self.timer)
def utcnow(self):
return (datetime.utcnow() - datetime(1970, 1, 1)).total_seconds()
def draw_iss_path(self):
# Path is drawn every 5 mins
if self.utcnow() - self.last_path_update > 30:
try:
self.map.remove_layer(self.mmlayer)
except:
pass
self.mmlayer = MarkerMapLayer()
# Create markers showing the ISS's position every 5 mins
for i in range(20):
lat, lon = self.get_loc(datetime.now() + timedelta(0, i * 300))
self.mmlayer.add_widget(
MapMarker(lat=lat, lon=lon, source=self.path_icon))
# Update the flag so we know when next update should be run
self.last_path_update = self.utcnow()
# Add the layer and call the reposition function otherwise the
# markers don't show otherwise!
self.map.add_layer(self.mmlayer)
self.mmlayer.reposition()
def get_TLE(self):
# Set some flags
need_update = False
# Set our data source and the name of the object we're tracking
source = "http://www.celestrak.com/NORAD/elements/stations.txt"
ISS = "ISS (ZARYA)"
# Get the current time
utc_now = self.utcnow()
# Set the name of our file to store data
data = os.path.join(self.path, "iss_tle.json")
# Try loading old data
try:
with open(data, "r") as savefile:
saved = json.load(savefile)
# If we can't create a dummy dict
except IOError:
saved = {"updated": 0}
# If old data is more than an hour hold, let's check for an update
if utc_now - saved["updated"] > 3600:
need_update = True
# If we don't have any TLE data then we need an update
if not saved.get("tle"):
need_update = True
if need_update:
# Load the TLE data
raw = requests.get(source).text
# Split the data into a neat list
all_sats = [sat.strip() for sat in raw.split("\n")]
# Find the ISS and grab the whole TLE (three lines)
iss_index = all_sats.index(ISS)
iss_tle = all_sats[iss_index:iss_index + 3]
# Prepare a dict to save our data
new_tle = {"updated": utc_now, "tle": iss_tle}
# Save it
with open(data, "w") as savefile:
json.dump(new_tle, savefile, indent=4)
# ephem needs strings not unicode
return [str(x) for x in iss_tle]
else:
# return the saved data (as strings)
return [str(x) for x in saved["tle"]]
def update(self, *args):
# Update the ISS with newest TLE
self.iss = ephem.readtle(*self.get_TLE())
# Get the position and update marker
lat, lon = self.get_loc()
self.marker.lat = lat
self.marker.lon = lon
self.map.remove_widget(self.marker)
self.map.add_widget(self.marker)
# Check if the path needs redrawing
self.draw_iss_path()
def get_loc(self, dt=None):
# We can get the location for a specific time as well
if dt is None:
self.iss.compute()
else:
self.iss.compute(dt)
# Convert the ephem data into something that the map can use
lat = float(self.iss.sublat / ephem.degree)
lon = float(self.iss.sublong / ephem.degree)
return lat, lon
class ISSScreen(Screen):
def __init__(self, **kwargs):
super(ISSScreen, self).__init__(**kwargs)
# Set the path for the folder
self.path = os.path.dirname(os.path.abspath(__file__))
# Set the path for local images
self.imagefolder = os.path.join(self.path, "images")
# Ephem calculates the position using the Two Line Element data
# We need to make sure we have up to date info
tle = self.get_TLE()
# Create an iss object from which we can get positional data
self.iss = ephem.readtle(*tle)
# Run the calculations
self.iss.compute()
# Get positon of iss and place a marker there
lat, lon = self.get_loc()
self.marker = MapMarker(lat=lat, lon=lon)
# Create a value to check when we last drew ISS path
self.last_path_update = 0
# Create the path icon
self.path_icon = os.path.join(self.imagefolder, "dot.png")
# Create the world map
self.map = MapView(id="mpv",lat=0, lon=0, zoom=1, scale=1.5)
x, y = self.map.get_window_xy_from(0,0,1)
self.map.scale_at(1.2, x, y)
# Add the ISS marker to the map and draw the map on the screen
self.map.add_widget(self.marker)
self.add_widget(self.map)
# Add a new layer for the path
self.mmlayer = MarkerMapLayer()
self.draw_iss_path()
self.timer = None
def on_enter(self):
self.timer = Clock.schedule_interval(self.update, 1)
def on_leave(self):
Clock.unschedule(self.timer)
def utcnow(self):
return (datetime.utcnow() - datetime(1970,1,1)).total_seconds()
def draw_iss_path(self):
# Path is drawn every 5 mins
if self.utcnow() - self.last_path_update > 30:
try:
self.map.remove_layer(self.mmlayer)
except:
pass
self.mmlayer = MarkerMapLayer()
# Create markers showing the ISS's position every 5 mins
for i in range(20):
lat, lon = self.get_loc(datetime.now() + timedelta(0, i * 300))
self.mmlayer.add_widget(MapMarker(lat=lat,
lon=lon,
source=self.path_icon))
# Update the flag so we know when next update should be run
self.last_path_update = self.utcnow()
# Add the layer and call the reposition function otherwise the
# markers don't show otherwise!
self.map.add_layer(self.mmlayer)
self.mmlayer.reposition()
def get_TLE(self):
# Set some flags
need_update = False
# Set our data source and the name of the object we're tracking
source = "http://www.celestrak.com/NORAD/elements/stations.txt"
ISS = "ISS (ZARYA)"
# Get the current time
utc_now = self.utcnow()
# Set the name of our file to store data
data = os.path.join(self.path, "iss_tle.json")
# Try loading old data
try:
with open(data, "r") as savefile:
saved = json.load(savefile)
# If we can't create a dummy dict
except IOError:
saved = {"updated": 0}
# If old data is more than an hour hold, let's check for an update
if utc_now - saved["updated"] > 3600:
need_update = True
# If we don't have any TLE data then we need an update
if not saved.get("tle"):
need_update = True
if need_update:
# Load the TLE data
raw = requests.get(source).text
# Split the data into a neat list
all_sats = [sat.strip() for sat in raw.split("\n")]
# Find the ISS and grab the whole TLE (three lines)
iss_index = all_sats.index(ISS)
iss_tle = all_sats[iss_index:iss_index + 3]
# Prepare a dict to save our data
new_tle = {"updated": utc_now,
"tle": iss_tle}
# Save it
with open(data, "w") as savefile:
json.dump(new_tle, savefile, indent=4)
# ephem needs strings not unicode
return [str(x) for x in iss_tle]
else:
# return the saved data (as strings)
return [str(x) for x in saved["tle"]]
def update(self, *args):
# Update the ISS with newest TLE
self.iss = ephem.readtle(*self.get_TLE())
# Get the position and update marker
lat, lon = self.get_loc()
self.marker.lat = lat
self.marker.lon = lon
self.map.remove_widget(self.marker)
self.map.add_widget(self.marker)
# Check if the path needs redrawing
self.draw_iss_path()
def get_loc(self, dt=None):
# We can get the location for a specific time as well
if dt is None:
self.iss.compute()
else:
self.iss.compute(dt)
# Convert the ephem data into something that the map can use
lat = float(self.iss.sublat / ephem.degree)
lon = float(self.iss.sublong / ephem.degree)
return lat, lon
class RadarMapView(MapView):
def __init__(self, lat=51.5, lon=0, zoom=8, url="http://localhost/dump1090/data/aircraft.json", interval=1):
self.aircraft_layer = MarkerMapLayer()
self.update_in_progress = False
self.list_of_tracked_aircraft = []
self.aircraft_markers = []
self.url = url
super().__init__(lat=lat, lon=lon, zoom=zoom)
self.add_layer(self.aircraft_layer)
Clock.schedule_interval(self.request_update, interval)
def request_update(self, time):
UrlRequest(self.url, on_success=self.update_aircraft)
def update_aircraft(self, request, result):
if self.update_in_progress:
return
self.update_in_progress = True
list_of_aircraft = result["aircraft"]
# Update tracked aircraft and mark stale ones as inactive
for a_tracked_aircraft in self.list_of_tracked_aircraft:
aircraft_active = False
for an_aircraft in list_of_aircraft:
if an_aircraft["hex"] == a_tracked_aircraft.hex:
a_tracked_aircraft.data = an_aircraft
aircraft_active = True
break
a_tracked_aircraft.active = aircraft_active
# Add newly detected aircraft
for an_aircraft in list_of_aircraft:
aircraft_tracked = False
for a_tracked_aircraft in self.list_of_tracked_aircraft:
if a_tracked_aircraft.hex == an_aircraft["hex"]:
aircraft_tracked = True
break
if not aircraft_tracked:
a_tracked_aircraft = Aircraft()
a_tracked_aircraft.hex = an_aircraft["hex"]
a_tracked_aircraft.active = True
a_tracked_aircraft.data = an_aircraft
self.list_of_tracked_aircraft.append(a_tracked_aircraft)
# Set up markers
for a_tracked_aircraft in self.list_of_tracked_aircraft:
active = a_tracked_aircraft.active
data = a_tracked_aircraft.data
position_known = "lat" in data and "lon" in data and "track" in data
has_marker = hasattr(a_tracked_aircraft, "marker")
if active and position_known:
if has_marker:
marker = a_tracked_aircraft.marker
else:
marker = AircraftMarker()
marker.anchor_x = 0.5
marker.anchor_y = 0.5
a_tracked_aircraft.marker = marker
marker.popup_size = (80, 25)
a_tracked_aircraft.labelmode = 1
label = Label()
bubble = Bubble()
label.color = (1, 1, 0, 1)
label.outline_color = (0, 0, 0, 1)
bubble.add_widget(label)
marker.add_widget(bubble)
a_tracked_aircraft.label = label
if hasattr(a_tracked_aircraft, "label"):
label = a_tracked_aircraft.label
if "flight" in data:
label.text = data["flight"]
else:
label.text = "unknown"
if marker.full_label:
marker.popup_size = (80, 100)
if "altitude" in data:
label.text = label.text + \
"\nALT: {}".format(data["altitude"])
if "vert_rate" in data:
label.text = label.text + \
"\nRoC: {}".format(data["vert_rate"])
if "track" in data:
label.text = label.text + \
"\nTRK: {}".format(data["track"])
if "speed" in data:
label.text = label.text + \
"\nSPD: {}".format(data["speed"])
else:
marker.popup_size = (80, 25)
marker.source = "icons/plane{}.png".format(
round(a_tracked_aircraft.data["track"]/10)*10)
marker.lat = a_tracked_aircraft.data["lat"]
marker.lon = a_tracked_aircraft.data["lon"]
if not has_marker:
self.add_marker(
a_tracked_aircraft.marker, layer=self.aircraft_layer)
else:
if has_marker:
self.remove_marker(a_tracked_aircraft.marker)
delattr(a_tracked_aircraft, "marker")
if not active:
self.list_of_tracked_aircraft.remove(a_tracked_aircraft)
self.aircraft_layer.reposition()
self.update_in_progress = False
