使用R进行地图相关的可视化

Here is a solution using the geosphere and maps package. Using the gcIntermediate function you can "intermediate points on a great circle inbetween the two points used to define the great circle."

Here is an example showing flight conncetions from the JKF airport (sample data from the nycflights13 package filtered with dplyr):

library(maps)
library(geosphere)
library(dplyr)
library(nycflights13)


usairports <- filter(airports, lat < 48.5)
usairports <- filter(usairports, lon > -130)
usairports <- filter(usairports, faa!="JFK")
jfk <- filter(airports, faa=="JFK")

map("world", regions=c("usa"), fill=T, col="grey8", bg="grey15", ylim=c(21.0,50.0), xlim=c(-130.0,-65.0))


for (i in (1:dim(usairports)[1])) {

inter <- gcIntermediate(c(jfk$lon[1], jfk$lat[1]), c(usairports$lon[i], usairports$lat[i]), n=200)

lines(inter, lwd=0.1, col="turquoise2")   
}

points(usairports$lon,usairports$lat, pch=3, cex=0.1, col="chocolate1")

转自：http://stackoverflow.com/questions/33122456/r-creating-a-world-network-map