how to convert between degrees, minutes, seconds to Decimal coordinates

java geolocation geospatial geotools
Aravind Yarram picture Aravind Yarram · Nov 25, 2011 · Viewed 43.9k times · Source

Looking for a java utility. It is even better if you can tell me how to do it using geotools library.

Answer

David Titarenco picture David Titarenco · Nov 25, 2011

By "Decimal coordinates" do you mean latitude and longitude (also known as the decimal degree)? If so, what you're trying to do is pretty easy:

Given a DMS (Degrees, Minutes, Seconds) coordinate such as W87°43′41″, it's trivial to convert it to a number of decimal degrees using the following method: Calculate the total number of seconds, 43′41″ = (43*60 + 41) = 2621 seconds. The fractional part is total number of seconds divided by 3600. 2621 / 3600 = ~0.728056 Add fractional degrees to whole degrees to produce the final result: 87 + 0.728056 = 87.728056

Since it is a West longitude coordinate, negate the result. The final result is -87.728056.

From Wikipedia. Here's a Javascript widget that does the same thing.

Related questions

Converting lat/long to JTS?

I am trying to integrate hibernate spatial with JPA for Geo searches. I have been referencing the tutorial on the official site (I am not associated with hibernatespatial). The tutorial, unfortunately, does not cover how to create a Point instance …

Read More
How to get current location in Android

I'm having troubles of getting my current position coordinates using the NETWORK provider of android location system. Already read a lot of tutorials and implemented 4 or 5 existing classes to my project and all of them are giving me the last …

Read More
How to get Latitude and Longitude of the mobile device in android?

How do I get the current Latitude and Longitude of the mobile device in android using location tools?

Read More