miaowware/qrm2
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in dent we trust

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Abigail Gold 2019-12-25 02:52:14 -05:00
parent b0072f779e
commit ea8c3a9045
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1 changed files with 4 additions and 4 deletions
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exts/grid.py
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@ -84,8 +84,8 @@ If two grid squares are given, the distance and azimuth between them is calculat
d_lat = math.radians(loc2[0] - loc[0])
d_lon = math.radians(loc2[1] - loc[1])
a = math.sin(d_lat/2) ** 2
+ math.cos(math.radians(loc[0])) * math.cos(math.radians(loc2[0]))
* math.sin(d_lon/2) ** 2
a += math.cos(math.radians(loc[0])) * math.cos(math.radians(loc2[0]))
a *= math.sin(d_lon/2) ** 2
c = 2 * math.atan2(math.sqrt(a), math.sqrt(1-a))
d = radius * c
d_mi = 0.6213712 * d
@ -93,8 +93,8 @@ If two grid squares are given, the distance and azimuth between them is calculat
# Bearing
y_dist = math.sin(math.radians(loc2[1]-loc[1])) * math.cos(math.radians(loc2[0]))
x_dist = math.cos(math.radians(loc[0])) * math.sin(math.radians(loc2[0]))
- math.sin(math.radians(loc[0])) * math.cos(math.radians(loc2[0]))
* math.cos(math.radians(loc2[1] - loc[1]))
x_dist -= math.sin(math.radians(loc[0])) * math.cos(math.radians(loc2[0]))
x_dist *= math.cos(math.radians(loc2[1] - loc[1]))
bearing = (math.degrees(math.atan2(y_dist, x_dist)) + 360) % 360
embed = cmn.embed_factory(ctx)