how to calculate the distance of a lat lon to the coastline?

6 vues (au cours des 30 derniers jours)
surya
surya le 14 Déc 2019
Commenté : Melih Can le 9 Sep 2020
hello, I want to find the distance from the lat lat station to the coastline. following my script, but there was an error that I did not understand, I thank anyone who provided advice and helped me.
lonlat = load ('lonlat.mat');%get lonlat allstasiun
coast = load('coast.dat');
% % Preallocate
coast_indexes = size(lonlat);
distancefromcoast = size(lonlat);
% % Find distance and corresponding coastal point
for i=1:1:numel(lonlat)
[dist, az] = distance(lonlat(i), lonlat(i), coast.lat, coast.long);
[distancefromcoast(i),coast_indexes(i)] = min(dist);
end
  3 commentaires
Meg Noah
Meg Noah le 10 Jan 2020
Please share 'lonlat.mat'
Melih Can
Melih Can le 9 Sep 2020
Should be 'coast.mat' also distance('lonlat(i),lonlat(i)'... does'nt look appropriate

Connectez-vous pour commenter.

Réponses (1)

David Hill
David Hill le 11 Jan 2020
Technically, you should use spherical trigonometry (great circle path) to determine the shortest distance. The algorithm is not difficult. You could solve my Cody problem: https://www.mathworks.com/matlabcentral/cody/problems/45180

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by