Coverage for apps/campaigns/utils.py: 25%

1import math 

2 

3from django.contrib.gis.measure import Distance 

4 

5 

6def deg2rad(deg: float): 

7 return deg * (math.pi / 180) 

8 

9 

10def distance_between_lat_long(lat1: float, long1: float, lat2: float, long2: float): 

11 lat1 = float(lat1) 

12 lat2 = float(lat2) 

13 long1 = float(long1) 

14 long2 = float(long2) 

15 R = 6371 

16 dLat = deg2rad(lat2 - lat1) 

17 dLon = deg2rad(long2 - long1) 

18 a = math.sin(dLat / 2) * math.sin(dLat / 2) + math.cos(deg2rad(lat1)) * math.cos(deg2rad(lat2)) * math.sin( 

19 dLon / 2 

20 ) * math.sin(dLon / 2) 

21 c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a)) 

22 d = Distance(km=R * c) 

23 return d.yd