Comments on: Degree-Minute-Second To Decimal Degree Converter

By: Mihammad Irfan

Mihammad Irfan — Mon, 02 Nov 2009 10:38:30 +0000

I need it for my office work

By: Leszek Pawlowicz

Leszek Pawlowicz — Thu, 17 Jan 2008 23:20:11 +0000

Thanks, Dylan – it’ll get featured billing in tomorrow’s post as well.

By: Dylan

Dylan — Thu, 17 Jan 2008 22:50:33 +0000

ack! it looks like my < and > were gobbled up by the comment parser. it should look like this:

cs2cs +proj=latlong +datum=NAD83 +to +proj=latlong +datum=NAD83 < DD_coords.txt > DMS_coords.txt

By: Dylan

Dylan — Thu, 17 Jan 2008 22:48:43 +0000

You bet:

1. convert DD -> DMS:
cs2cs +proj=latlong +datum=NAD83 +to +proj=latlong +datum=NAD83

2. convert DMS -> DD
cs2cs -f “%.6f” +proj=latlong +datum=NAD83 +to +proj=latlong +datum=NAD83

if you invoke the command as listed above (without reference to a data stream) you will get an interactive prompt. This approach is a lot more useful when you have a file full of coordinates, or a stream of coordinates:

cs2cs +proj=latlong +datum=NAD83 +to +proj=latlong +datum=NAD83 DMS_coords.txt

Dylan

By: Aron Rubin

Aron Rubin — Thu, 17 Jan 2008 22:44:09 +0000

Here’s my code for DMS to decimal degrees. If you want it wrapped in anyway let me know. I would post it here be line wrap confuses things.

http://rubinium.org/blog/archives/2008/01/17/dms-to-decimal-by-request

By: Leszek Pawlowicz

Leszek Pawlowicz — Thu, 17 Jan 2008 21:23:41 +0000

proj obviously does a lot, but its command-line nature and dense documentation aren’t exactly user-friendly. Call me a wimp, but if there’s a utility with a GUI that does the job I need, I’ll take it over a more powerful command-line utility any day.

If you can send me a brief description of how to use proj to solve Brian’s problem, I’d be happy to post it here.

By: Dylan

Dylan — Thu, 17 Jan 2008 21:01:03 +0000

C’mon guys — there is an excellent, free tool for working with coordinates: proj !! (http://proj.maptools.org/) install it via source, or via FW Tools on windows. Spend some time with the documentation and you will be able to convert coordinates with ease.

Dylan

By: Leszek Pawlowicz

Leszek Pawlowicz — Thu, 17 Jan 2008 18:14:55 +0000

I may have some options for you in the next post (tomorrow).

By: Brian Peasley

Brian Peasley — Thu, 17 Jan 2008 17:35:24 +0000

Your posts are great, thanks for sharing!

I’ve been looking for a DMS–>DecimalDegree converter that can handle batches rather than one-at-a-time conversion. I haven’t even found one that I can buy (let alone a freeware version)… I would love to hear back from anybody who knows of one before I go and re-invent the wheel!

Thanks,
–Brian