I would like to add some boxes with special extent to my plot. Example
gh <- raster() gh[] <- 1:ncell(gh) SP <- spsample(Spatial(bbox=bbox(gh)), 10, type="random") Then plot them levelplot(gh, col.regions = rev(terrain.colors(255)), cuts=254, margin=FALSE) + layer(sp.points(SP, col = "red")) this plots a map with several crosses in it but I need to plot a box with spacial extent: extent(gh) = extent(c(xmn=-180,xmx=180,ymn=-90,ymx=90)) e6 <- extent( 2 , 8 , 45 , 51 ) I wan to add e6 to the plot and put the number2 inside the box.Any hint please -- View this message in context: http://r.789695.n4.nabble.com/How-to-add-box-layer-using-levelplot-in-R-tp4685658.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.