Compute Centroids of Polygons
Computes all areas and centroids of the regions of a given map in boundary format.
get.centroids(map)
map |
Map object in boundary format. |
Matrix of area and centroids.
Felix Heinzl, Thomas Kneib
germany <- read.bnd(system.file("examples/germany.bnd", package="BayesX"))
centroids <- get.centroids(germany)
centroids[1:10,]
plot(c(2100,3700),c(6800,8500),type="n", xlab="", ylab="")
for(i in 1:10){
polygon(germany[[i]])
region <- attr(germany,"names")[i]
text(x=centroids[i,2]+50, y=centroids[i,3]+30, region, cex=0.7)
}
points(centroids[1:10,2:3], col='red', pch=16)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.