def track_length(track):
''' Run through the track, calculate distance in kilometers
and return that. '''
kilometers = 0.0
n = 1
for tp in track[0:-1]:
distance = haversine.haversine(tp['lon'], tp['lat'], track[n]['lon'], track[n]['lat'])
kilometers += distance
n += 1
return kilometers
def track_length(track):
''' Run through the track, calculate distance in kilometers
and return that. '''
kilometers = 0.0
n = 1
for tp in track[0:-1]:
distance = haversine.haversine(tp['lon'], tp['lat'], track[n]['lon'],
track[n]['lat'])
kilometers += distance
n += 1
return kilometers
def get_geoJSON():
data = json.load(bottle.request.body)
# needs LOTS of error handling
usertid = data.get('usertid')
from_date = data.get('fromdate')
to_date = data.get('todate')
spacing = int(data.get('spacing', POINT_KM))
tzname = data.get('tzname', 'UTC')
track = getDBdata(usertid, from_date, to_date, spacing, tzname)
last_point = [None, None]
collection = {
'type' : 'FeatureCollection',
'features' : [], # [ geo, <list of points> ]
}
geo = {
'type' : 'Feature',
'geometry' : {
'type' : 'LineString',
'coordinates' : []
},
'properties' : {
'description' : "an OwnTracks track", # updated below
},
}
pointlist = []
track_coords = []
kilometers = track_length(track)
# bounding box
lat_min = 180
lat_max = -180
lon_min = 90
lon_max = -90
for tp in track:
lat = tp['lat']
lon = tp['lon']
tst = tp['tst']
if lat > lat_max:
lat_max = lat
if lat < lat_min:
lat_min = lat
if lon > lon_max:
lon_max = lon
if lon < lon_min:
lon_min = lon
track_coords.append( [ lon, lat ] )
distance = None
if last_point[0] is not None:
distance = haversine.haversine(lon, lat, last_point[0], last_point[1])
if last_point[0] is None or distance > spacing:
last_point = [lon, lat]
point = {
'type' : 'Feature',
'geometry' : {
'type' : "Point",
'coordinates' : [lon, lat],
},
'properties' : {
'description' : "%s: %s" % (tst, tp.get('addr', 'Unknown location'))
}
}
pointlist.append(point)
geo['geometry']['coordinates'] = track_coords
geo['properties']['description'] = "Track length: %.2f km" % kilometers
collection['features'] = [ geo ]
for p in pointlist:
collection['features'].append(p)
# Experiment: geofences
fences = []
for f in getDBwaypoints(usertid, lat_min, lat_max, lon_min, lon_max):
fence = {
'type' : 'Feature',
'geometry' : {
'type' : "Point",
'coordinates' : [f['lon'], f['lat']],
},
'properties' : {
'description' : f['name'],
'geofence': {
'radius' : f['rad'],
},
}
}
collection['features'].append(fence)
return collection
def get_geoJSON():
data = json.load(bottle.request.body)
# needs LOTS of error handling
usertid = data.get('usertid')
from_date = data.get('fromdate')
to_date = data.get('todate')
spacing = int(data.get('spacing', POINT_KM))
tzname = data.get('tzname', 'UTC')
track = getDBdata(usertid, from_date, to_date, spacing, tzname)
last_point = [None, None]
collection = {
'type': 'FeatureCollection',
'features': [], # [ geo, <list of points> ]
}
geo = {
'type': 'Feature',
'geometry': {
'type': 'LineString',
'coordinates': []
},
'properties': {
'description': "an OwnTracks track", # updated below
},
}
pointlist = []
track_coords = []
kilometers = track_length(track)
# bounding box
lat_min = 180
lat_max = -180
lon_min = 90
lon_max = -90
for tp in track:
lat = tp['lat']
lon = tp['lon']
tst = tp['tst']
if lat > lat_max:
lat_max = lat
if lat < lat_min:
lat_min = lat
if lon > lon_max:
lon_max = lon
if lon < lon_min:
lon_min = lon
track_coords.append([lon, lat])
distance = None
if last_point[0] is not None:
distance = haversine.haversine(lon, lat, last_point[0],
last_point[1])
if last_point[0] is None or distance > spacing:
last_point = [lon, lat]
point = {
'type': 'Feature',
'geometry': {
'type': "Point",
'coordinates': [lon, lat],
},
'properties': {
'description':
"%s: %s" % (tst, tp.get('addr', 'Unknown location'))
}
}
pointlist.append(point)
geo['geometry']['coordinates'] = track_coords
geo['properties']['description'] = "Track length: %.2f km" % kilometers
collection['features'] = [geo]
for p in pointlist:
collection['features'].append(p)
# Experiment: geofences
fences = []
for f in getDBwaypoints(usertid, lat_min, lat_max, lon_min, lon_max):
fence = {
'type': 'Feature',
'geometry': {
'type': "Point",
'coordinates': [f['lon'], f['lat']],
},
'properties': {
'description': f['name'],
'geofence': {
'radius': f['rad'],
},
}
}
collection['features'].append(fence)
return collection
