yacwc

2021-07-01 20:26:24 -04:00
parent 8b02bf9a8c
commit f46d193826
16 changed files with 433 additions and 146 deletions
--- a/bear_utils.py
+++ b/bear_utils.py
@@ -0,0 +1,24 @@
+from math import sin, cos, sqrt, atan2, radians
+
+
+def get_distance_from_home(lat_b, lon_b):
+    lat_a = 42.295940
+    lon_a = -83.751960
+
+    return distance_lat_lon(lat_a, lon_a, lat_b, lon_b)
+
+
+def distance_lat_lon(lat_a, lon_a, lat_b, lon_b):
+
+    R = 6373.0
+    R = 6373.0
+    lat1 = radians(lat_a)
+    lon1 = radians(lon_a)
+    lat2 = radians(lat_b)
+    lon2 = radians(lon_b)
+    dlon = lon2 - lon1
+    dlat = lat2 - lat1
+    a = sin(dlat / 2) ** 2 + cos(lat1) * cos(lat2) * sin(dlon / 2) ** 2
+    c = 2 * atan2(sqrt(a), sqrt(1 - a))
+
+    return R * c