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pos2dist

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Calculate distance between two points on earth's surface given by latitude-longitude pair.

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Calculate distance between two points on earth's surface given by their latitude-longitude pair. Choose method 1 or 2. Method 1 uses plane approximation, only for points within several tens of kilometers; Method 2 calculates sphereic geodesic distance for points farther apart, but ignores flattening of the earth. Output is in km.

Comments and Ratings (15)

Shi Su

Shi Su (view profile)

LR

LR (view profile)

My bad, dist = DISTANCE(LAT1,LON1,LAT2,LON2,ELLIPSOID)

LR

LR (view profile)

You could also use the built-in function DISTANCE from the Mapping Toolbox:
dist = DISTANCE(LON1,LAT1,LON2,LAT2,ELLIPSOID)
For the Earth:
ELLIPSOID = [6378.1 km (semimajor axis), 0.00335 (eccentricity)]

Isabel Lima

Thanks a lot. Great function!

Those are some of the strangest FEX tags that I have ever seen:

but i dont run the function
distance
how many inputs i need
how many inputs i need 4
latitude
longitude
points
surface

shen

shen (view profile)

Thank you very much.It is excellent but please check there might be a small error when there are only four input variables.

Tom

Tom (view profile)

thank you, it works great!

star

star (view profile)

Thank you for the useful function

Joachim

Good work

line 36 should be

method = 1;

instead of

method == 1;

otherwise, very useful!

Thanks. I was about to write the same function, but then I found it here: you made save some time! :)

Rafael Palacios

Rafael Palacios (view profile)

David Terr

That's much better! Keep up the good work.

Langqiu Sun

Appologize for the former one. That's imcomplete. A new version has been uploaded. This should be OK.

David Terr

This looks like it could be a great program but as is, it doesn't do anything! In fact, I had to add a couple lines to the end to keep it from returning an error message. Please test your code before submitting it!

Dave

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