Hi Sven, Are you ok if I integrate your code into Territorial?
I'd like to have 'Ottawa@CA' asTerritoiralCity distanceWGS84To: 'Rome@IT' asTerritorialCity Hernán 2016-10-05 19:00 GMT-03:00 Sven Van Caekenberghe <s...@stfx.eu>: > Hi Paul, > > This is what we use (given WGS84 coordinates) > > T3GeoTools class>>#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 > > Sven > > > On 05 Oct 2016, at 23:28, Paul DeBruicker <pdebr...@gmail.com> wrote: > > > > umm ... here is a good place to start > > > > http://forum.world.st/Geo-coordinates-operations-td4732373.html#a4732441 > > > > > > > > Paul DeBruicker wrote > >> I've got a few objects with latitude and longitude and want to be able > to > >> find the nearest from a collection > >> > >> > >> Thanks > >> > >> Paul > > > > > > > > > > > > -- > > View this message in context: http://forum.world.st/Is- > there-any-library-to-calculate-the-geographic-distance-between-two-points- > tp4918207p4918208.html > > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > > > > >
