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utils.py
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utils.py
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import math
import random
import requests
import polyline
from geopy import distance, Point
from pgoapi import utilities as pgoapi_utils
import config
def get_map_center():
"""Returns center of the map"""
lat = (config.MAP_END[0] + config.MAP_START[0]) / 2
lon = (config.MAP_END[1] + config.MAP_START[1]) / 2
return lat, lon
def get_scan_area():
"""Returns the square kilometers for configured scan area"""
lat1 = config.MAP_START[0]
lat2 = config.MAP_END[0]
lon1 = config.MAP_START[1]
lon2 = config.MAP_END[1]
p1 = Point(lat1, lon1)
p2 = Point(lat1, lon2)
p3 = Point(lat1, lon1)
p4 = Point(lat2, lon1)
width = distance.distance(p1, p2).kilometers
height = distance.distance(p3, p4).kilometers
area = int(width * height)
return area
def get_start_coords(worker_no):
"""Returns center of square for given worker"""
grid = config.GRID
total_workers = grid[0] * grid[1]
per_column = int(total_workers / grid[0])
column = worker_no % per_column
row = int(worker_no / per_column)
part_lat = (config.MAP_END[0] - config.MAP_START[0]) / float(grid[0])
part_lon = (config.MAP_END[1] - config.MAP_START[1]) / float(grid[1])
start_lat = config.MAP_START[0] + part_lat * row + part_lat / 2
start_lon = config.MAP_START[1] + part_lon * column + part_lon / 2
return start_lat, start_lon
def float_range(start, end, step):
"""xrange for floats, also capable of iterating backwards"""
if start > end:
while end < start:
yield start
start += -step
else:
while start < end:
yield start
start += step
def get_gains():
"""Returns lat and lon gain
Gain is space between circles.
"""
start = Point(*get_map_center())
base = config.SCAN_RADIUS * math.sqrt(3)
height = base * math.sqrt(3) / 2
dis_a = distance.VincentyDistance(meters=base)
dis_h = distance.VincentyDistance(meters=height)
lon_gain = dis_a.destination(point=start, bearing=90).longitude
lat_gain = dis_h.destination(point=start, bearing=0).latitude
return abs(start.latitude - lat_gain), abs(start.longitude - lon_gain)
def get_altitudes():
rounded_coords = set()
lat_gain, lon_gain = get_gains()
for map_row, lat in enumerate(
float_range(config.MAP_START[0], config.MAP_END[0], lat_gain)
):
row_start_lon = config.MAP_START[1]
odd = map_row % 2 != 0
if odd:
row_start_lon -= 0.5 * lon_gain
for map_col, lon in enumerate(
float_range(row_start_lon, config.MAP_END[1], lon_gain)
):
rounded_coords.add((round(lat, 2), round(lon, 2)))
altitudes = dict()
try:
params = {'locations': 'enc:' + polyline.encode(tuple(rounded_coords))}
if hasattr(config, 'GOOGLE_MAPS_KEY'):
params['key'] = config.GOOGLE_MAPS_KEY
r = requests.get('https://maps.googleapis.com/maps/api/elevation/json',
params=params).json()
for result in r['results']:
coords = (round(result['location']['lat'], 2),
round(result['location']['lng'], 2))
altitudes[coords] = result['elevation']
except Exception:
for coord in rounded_coords:
if hasattr(config, 'ALT_RANGE'):
altitudes[coord] = random.uniform(*config.ALT_RANGE)
else:
altitudes[coord] = random.uniform(300, 400)
return altitudes
def get_points_per_worker(gen_alts=False):
"""Returns all points that should be visited for whole grid"""
total_workers = config.GRID[0] * config.GRID[1]
lat_gain, lon_gain = get_gains()
points = [[] for _ in range(total_workers)]
total_rows = math.ceil(
abs(config.MAP_START[0] - config.MAP_END[0]) / lat_gain
)
total_columns = math.ceil(
abs(config.MAP_START[1] - config.MAP_END[1]) / lon_gain
)
if gen_alts:
altitudes = get_altitudes()
for map_row, lat in enumerate(
float_range(config.MAP_START[0], config.MAP_END[0], lat_gain)
):
row_start_lon = config.MAP_START[1]
odd = map_row % 2 != 0
if odd:
row_start_lon -= 0.5 * lon_gain
for map_col, lon in enumerate(
float_range(row_start_lon, config.MAP_END[1], lon_gain)
):
# Figure out which worker this should go to
grid_row = int(map_row / float(total_rows) * config.GRID[0])
grid_col = int(map_col / float(total_columns) * config.GRID[1])
if map_col >= total_columns: # should happen only once per 2 rows
grid_col -= 1
worker_no = grid_row * config.GRID[1] + grid_col
rounded = (round(lat, 2), round(lon, 2))
if gen_alts:
alt = altitudes[rounded]
points[worker_no].append((lat, lon, alt))
else:
points[worker_no].append((lat, lon))
points = [
sort_points_for_worker(p, i)
for i, p in enumerate(points)
]
return points
def get_worker_device(worker_number):
hardware = {'iPhone5,1': 'N41AP',
'iPhone5,2': 'N42AP',
'iPhone5,3': 'N48AP',
'iPhone5,4': 'N49AP',
'iPhone6,1': 'N51AP',
'iPhone6,2': 'N53AP',
'iPhone7,1': 'N56AP',
'iPhone7,2': 'N61AP',
'iPhone8,1': 'N71AP',
'iPhone8,2': 'N66AP',
'iPhone8,4': 'N69AP'}
account = config.ACCOUNTS[worker_number]
device_info = {'device_brand': 'Apple',
'device_model': 'iPhone',
'hardware_manufacturer': 'Apple',
'firmware_brand': 'iPhone OS'
}
device_info['device_model'] = account[3]
device_info['hardware_model'] = hardware[account[3]]
device_info['firmware_type'] = account[4]
device_info['device_id'] = account[5]
return device_info
def sort_points_for_worker(points, worker_no):
center = get_start_coords(worker_no)
return sorted(points, key=lambda p: get_distance(p, center))
def get_distance(p1, p2):
return math.sqrt(pow(p1[0] - p2[0], 2) + pow(p1[1] - p2[1], 2))
def get_cell_ids_for_points(points):
cell_ids = []
for point in points:
cell_ids.append(pgoapi_utils.get_cell_ids(point[0], point[1]))
return cell_ids