[Loadstone] Some feature suggestions.

Dave Mielke dave at mielke.cc
Wed Jul 11 14:46:02 BST 2007


[quoted lines by monty at loadstone-gps.com on 2007/07/11 at 14:30 +0100]

>Thanks for explaining the "Cartesian direction".  If I understand your 
>proposal correctly this is essentially based on standard Pythagoras 
>theorem.

Only for points which are close because Pythagoras only works accurately on
planes. That's why I'm suggesting that it be defined by distances along
latitudes and longitudes.

>Although we could certainly implement this, the returned distance values 
>would lose accuracy when relating to points far apart from each other. 
>This is because the Earth is a spheroid rather than a perfect sphere.  

I understand.

>We may however be able to use our current formula to improve accuracy in these
>situations.

If so, that'd be cool!

>Thanks for the suggestions and keep them coming!  We try and carefully 
>consider every suggestion from users!

I appreciate it.

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