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By : user2955958
Date : November 22 2020, 10:48 AM
Does that help First, you should convert you latitudes in radians too (you already do this for your longitudes): code :
``````u1 = math.atan( (1 - f) * math.tan(math.radians(la1)) )
u2 = math.atan( (1 - f) * math.tan(math.radians(la2)) )
L = math.radians((lo2 - lo1)) # better than * 0.0174532925
``````
``````2.5325205864224847
2.5325167509030906
2.532516759118641
2.532516759101044
2.5325167591010813
2.5325167591010813
2.5325167591010813
`````` ## Haversine Formula in Python (Bearing and Distance between two GPS points)

By : msl
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , Problem , Here's a Python version:
code :
``````from math import radians, cos, sin, asin, sqrt

def haversine(lon1, lat1, lon2, lat2):
"""
Calculate the great circle distance between two points
on the earth (specified in decimal degrees)
"""
# convert decimal degrees to radians
lon1, lat1, lon2, lat2 = map(radians, [lon1, lat1, lon2, lat2])

# haversine formula
dlon = lon2 - lon1
dlat = lat2 - lat1
a = sin(dlat/2)**2 + cos(lat1) * cos(lat2) * sin(dlon/2)**2
c = 2 * asin(sqrt(a))
r = 6371 # Radius of earth in kilometers. Use 3956 for miles
return c * r
`````` ## finding the distance between a set of points using scipy.spatial.distance.cdist(X, Y) in python

By : Devanopy
Date : March 29 2020, 07:55 AM
fixed the issue. Will look into that further Two solutions:
calculate the complete matrix directly, and the access the q-th column for the values between A and B[q].
code :
``````d = scipy.spatial.distance.cdist(A,B)

for q in range(len(B)):
y = d[:,q]
print y
``````
``````for q in range(len(B)):
y = scipy.spatial.distance.cdist(A,[B[q]])
print y
`````` ## How can I get distance between two points on Earth from PostGIS?

By : user3900726
Date : March 29 2020, 07:55 AM
I hope this helps . The result is correct, the input is not. ST_Point accepts input as (lon,lat) while you're verifying it as (lat,lon). ## Finding distance between two gps points in Python

By : Amin
Date : March 29 2020, 07:55 AM
it helps some times I have the method below (haversine) that returns the distance between two gps points. Table below is my dataframe. , Try:
code :
``````distdf1.apply(lambda x: haversine(x['SLongitude'], x['SLatitude'], x['ClosestLong'], x['ClosestLat']), axis=1)
`````` ## Spherical distance between two points on Earth

By : wendy calio
Date : March 29 2020, 07:55 AM
will help you I am trying to find distance between two points on Earth. But all I know is their latitude and longitude range(Both points lie in that range) and the x and y coordinates on the USA map. I am using data from this website http://www.dis.uniroma1.it/challenge9/download.shtml , Assuming a Mercator projection, convert X-Y to lat-long. 