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how can I get the distance between two points in geoscatter

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Hello, so I got a variable of latitud and another of longitud and a latitud and langitud from a point in the map. What I want is to calculate the distance between each point of the variables to the point I got in geoscatter. How can I do it?

Answers (1)

Divit
Divit on 18 Sep 2023
Hi,
I understand that you would like to calculate distance between a reference point and a list of points in geoscatter.
Here’s sample MATLAB code to help you with the task:
% Define latitude and longitude arrays for your points
lat_array = [latitude1, latitude2, latitude3, ...]; % Replace with your values
lon_array = [longitude1, longitude2, longitude3, ...]; % Replace with your values
% Define the latitude and longitude of your reference point
ref_lat = reference_latitude; % Replace with your value
ref_lon = reference_longitude; % Replace with your value
% Convert latitude and longitude values to radians
lat_array_rad = deg2rad(lat_array);
lon_array_rad = deg2rad(lon_array);
ref_lat_rad = deg2rad(ref_lat);
ref_lon_rad = deg2rad(ref_lon);
% Radius of the Earth in kilometers (mean value)
earth_radius_km = 6371;
% Initialize an array to store distances
distances_km = zeros(size(lat_array));
% Calculate distances using the Haversine formula
for i = 1:length(lat_array)
dlat = lat_array_rad(i) - ref_lat_rad;
dlon = lon_array_rad(i) - ref_lon_rad;
a = sin(dlat/2)^2 + cos(ref_lat_rad) * cos(lat_array_rad(i)) * sin(dlon/2)^2;
c = 2 * atan2(sqrt(a), sqrt(1-a));
distances_km(i) = earth_radius_km * c;
end
The distances_km array contains the distances between the reference point and each point in your lat_array and lon_array.
To understand more, refer to the following documentation links:
I hope you find it useful.

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