Color map of Poland for the New Year

[This article was first published on R snippets, and kindly contributed to R-bloggers]. (You can report issue about the content on this page here)
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

To celebrate the New Year I decided to plot map of Poland in our national colors.

It was not so difficult using maps  package. Here is the result:

and the code I used to generate it:

library(maps)
x.mid <- function(x1, x2, y1, y2, y.mid) {
      x1 + ((x2 x1) / (y2 y1)) * (y.mid y1)
}
poland <- map(“world”,“poland”, fill=T, col=“#D4213D”)
mid <- mean(poland$range[3:4])
upper <- poland$y > mid
cut1 <- which.max(diff(upper))
x.first <- x.mid(poland$x[cut1], poland$x[cut1 + 1],
                 poland$y[cut1], poland$y[cut1 + 1], mid)
cut2 <- which.min(diff(upper))
x.last <- x.mid(poland$x[cut2], poland$x[cut2 + 1],
                 poland$y[cut2], poland$y[cut2 + 1], mid)
                         
upperx <- c(x.first,poland$x[upper],x.last)
uppery <- c(mid, poland$y[upper], mid)
polygon(upperx, uppery, col=“white”)

To leave a comment for the author, please follow the link and comment on their blog: R snippets.

R-bloggers.com offers daily e-mail updates about R news and tutorials about learning R and many other topics. Click here if you're looking to post or find an R/data-science job.
Want to share your content on R-bloggers? click here if you have a blog, or here if you don't.

Never miss an update!
Subscribe to R-bloggers to receive
e-mails with the latest R posts.
(You will not see this message again.)

Click here to close (This popup will not appear again)