Lily_stats
2010-Nov-19 09:50 UTC
[R] Calculating distance between longitude,latitude of 2 points
Hi all, I would like to know a way of calculating the distance between 2 points when I already have the longitude and latitude of the points. For example : Point 1 : 52? 9'54.00"N 4?25'8.40"E Point 2 : 52?27'46.80"N 4?33'18.00"E Distance between point 1 and point in km .... Is there any functions already available for this ? Any help will be much appreciated! -- View this message in context: http://r.789695.n4.nabble.com/Calculating-distance-between-longitude-latitude-of-2-points-tp3050123p3050123.html Sent from the R help mailing list archive at Nabble.com.
David Winsemius
2010-Nov-19 13:17 UTC
[R] Calculating distance between longitude, latitude of 2 points
On Nov 19, 2010, at 4:50 AM, Lily_stats wrote:> > Hi all, > > I would like to know a way of calculating the distance between 2 > points when > I already have the longitude and latitude of the points. > > For example : > > Point 1 : 52? 9'54.00"N 4?25'8.40"E > Point 2 : 52?27'46.80"N 4?33'18.00"E > > Distance between point 1 and point in km .... > > Is there any functions already available for this ?Searching on: distance points longitude latitude gdist {Imap} Geodesic distance (great circle distance) between points Ellipsoidal.Distance {GEOmap} Ellipsoidal Distance deg.dist {fossil} Haversine Distance Formula distaz {RSEIS} Distance and Azimuth from two points distaz {GEOmap} Distance and Azimuth from two points (# one probably borrowed from the other) AlongGreat {RFOC} Get Points Along Great Circle distAB {clim.pact} Distance between two points on Earth> > Any help will be much appreciated!Suggest you learn to search. -- David Winsemius, MD West Hartford, CT
MacQueen, Don
2010-Nov-19 19:08 UTC
[R] Calculating distance between longitude, latitude of 2 points
Also spDists spDistsN1 Euclidean or Great Circle distance between points In the sp package. (and in my personal opinion, the sp package would be a good place to start, since it’s part of a group of packages I view as R’s core packages for working with spatial data) -Don On 11/19/10 5:17 AM, "David Winsemius" <dwinsemius@comcast.net> wrote: On Nov 19, 2010, at 4:50 AM, Lily_stats wrote:> > Hi all, > > I would like to know a way of calculating the distance between 2 > points when > I already have the longitude and latitude of the points. > > For example : > > Point 1 : 52° 9''54.00"N 4°25''8.40"E > Point 2 : 52°27''46.80"N 4°33''18.00"E > > Distance between point 1 and point in km .... > > Is there any functions already available for this ?Searching on: distance points longitude latitude gdist {Imap} Geodesic distance (great circle distance) between points Ellipsoidal.Distance {GEOmap} Ellipsoidal Distance deg.dist {fossil} Haversine Distance Formula distaz {RSEIS} Distance and Azimuth from two points distaz {GEOmap} Distance and Azimuth from two points (# one probably borrowed from the other) AlongGreat {RFOC} Get Points Along Great Circle distAB {clim.pact} Distance between two points on Earth> > Any help will be much appreciated!Suggest you learn to search. -- Don MacQueen Environmental Protection Department Lawrence Livermore National Laboratory 925 423-1062 [[alternative HTML version deleted]]