If no one has nothing agains it, I will move this Q/A on StackOverflow. Uko On 26 Dec 2013, at 11:35, Sven Van Caekenberghe <sven@stfx.eu> wrote:
Hi Esteban,
On 26 Dec 2013, at 02:23, Esteban A. Maringolo <emaringolo@gmail.com> wrote:
Answering myself...
I found a solution and transcribed it: http://pastebin.com/ThKDXCKK
This is the formula that we have been using for years in Pharo, Java[Script], Common Lisp:
distanceBetween: firstPosition and: secondPosition "T3GeoTools distanceBetween: 5.33732@50.926 and: 5.49705@50.82733"
| c | c := (firstPosition y degreeSin * secondPosition y degreeSin) + (firstPosition y degreeCos * secondPosition y degreeCos * (secondPosition x degreesToRadians - firstPosition x degreesToRadians) cos). c := c >= 0 ifTrue: [ 1 min: c ] ifFalse: [ -1 max: c ]. ^ c arcCos * 6371000
This is between WGS84 coordinates. It seems simpler than yours. We have been using this page as reference:
http://www.movable-type.co.uk/scripts/latlong.html
Regards,
Sven
Esteban A. Maringolo
2013/12/25 Esteban A. Maringolo <emaringolo@gmail.com>:
Has anybody implemented basic methods/classes to calculate distance between two points (lat, long) and similar operations?
Regards,
Esteban A. Maringolo