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Re: Amazingly accurate UTM <-> Lat/Lon transformations [message #85935 is a reply to message #85918]

Thu, 19 September 2013 05:40

tom.grydeland
Messages: 51
Registered: September 2012

Member

On Wednesday, September 18, 2013 3:04:13 PM UTC+2, David Fanning wrote:

> I'm not totally convinced the way to avoid them in this case is to roll
> your own software. I'd rather see folks fix the problem by using map
> projection software correctly.

In other words, don't use UTM for this kind of task. I don't disagree.

On the other hand, I cannot demonstrate how much more accurate these formulas are without implementing them (i.e. rolling my own), and the improvements are not available to anyone else without rolling their own until Exelis takes notice.

> My guess is that both of our efforts will
> prove to be for naught for most users. :-)

You're much too cynical. The Coyote library is a great benefit to all those using it, and my little note has enlightened at least one reader.

Trying to be of benefit to _most_ users is a tall order.

> David

--T

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[Message index]

		Amazingly accurate UTM <-> Lat/Lon transformations By: tom.grydeland on Tue, 17 September 2013 01:50
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: David Fanning on Tue, 17 September 2013 11:16
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: Fabzi on Wed, 18 September 2013 02:13
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: David Fanning on Wed, 18 September 2013 06:19
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: Andy Sayer on Wed, 18 September 2013 07:20
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: tom.grydeland on Wed, 18 September 2013 02:15
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: David Fanning on Wed, 18 September 2013 06:04
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: tom.grydeland on Thu, 19 September 2013 05:40
		Re: Amazingly accurate UTM <-> Lat/Lon transformations By: David Fanning on Thu, 19 September 2013 05:47

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