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Re: Distance - geodesic - Vincenty - very accurate [message #25946 is a reply to message #25941]

Sun, 21 March 2010 10:12

nlneilson is currently offline

nlneilson
Messages: 644
Registered: January 2010
Location: U.S. California. Mojave &...

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koldo wrote on Sun, 21 March 2010 07:57

Hello nlneison

At least in C++ that would be more work to decompile. It may be easier for someone to port the Vincenty code from Fortran to C++ than try to hack an .exe.

Do you mean that you call a windows .exe that includes the Vincenty code?

If yes it seems the Chris Veness javascript LGPL code here http://www.movable-type.co.uk/scripts/latlong-vincenty.html is easy to port to C.

I think that is pretty close to what I meant.

I have not tried to decompile an .exe or .dll file but know it can be done but it takes experience and work to do it. So what I was trying to say was the Distance app code was proprietary and that for someone to port the Fortran code would seem to be easier than decompiling a compiled .exe file.

Chris Veness's javascript code is just for the Inverse Formula and he has a copyright even though it is LGPL. Then you would need the Direct Formula.

There are examples on the web in different languages. I think a Govt. agency has code in another language, as well as the Fortran, where there would be no copyright.

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[Message index]

		Distance - geodesic - Vincenty - very accurate By: nlneilson on Thu, 18 March 2010 03:37
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 20 March 2010 02:24
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Sat, 20 March 2010 08:23
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 20 March 2010 15:39
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Sat, 20 March 2010 21:31
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 20 March 2010 22:21
		Re: Distance - geodesic - Vincenty - very accurate By: Didier on Sat, 20 March 2010 22:29
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 21 March 2010 00:52
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Sun, 21 March 2010 07:57
		Re: Distance - geodesic - Vincenty - very accurate By: Mindtraveller on Sun, 21 March 2010 08:44
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 21 March 2010 10:41
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Sun, 21 March 2010 18:11
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 21 March 2010 20:22
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 21 March 2010 22:10
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 21 March 2010 10:12
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Mon, 22 March 2010 22:20
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Mon, 22 March 2010 22:24
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Mon, 22 March 2010 22:57
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Mon, 22 March 2010 23:11
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Mon, 22 March 2010 23:44
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Tue, 23 March 2010 02:49
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Tue, 23 March 2010 03:37
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Tue, 23 March 2010 11:57
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Thu, 25 March 2010 10:35
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Fri, 26 March 2010 11:09
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Fri, 26 March 2010 12:30
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Fri, 26 March 2010 13:08
		Re: Distance - geodesic - Vincenty - very accurate By: koldo on Fri, 26 March 2010 20:07
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 27 March 2010 01:56
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 27 March 2010 05:31
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sat, 27 March 2010 08:05
		Re: Distance - geodesic - Vincenty - very accurate By: dolik.rce on Sat, 27 March 2010 10:23
		Re: Distance - geodesic - Vincenty - very accurate By: nlneilson on Sun, 28 March 2010 14:25

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