Hi, I think you want to build a levelplot object with polygon overlaid for each layer. Like the link below shows but with the added layer per your example.
https://oscarperpinan.github.io/rastervis/FAQ.html#several_rasters Also, you will get bucket loads of spatial-centric help using the r-sig-geo mailing list; check it out here https://stat.ethz.ch/mailman/listinfo/r-sig-geo. Cheers, Ben ### START library(sp) library(raster) library(rasterVis) library(RColorBrewer) S <- raster::stack(system.file("external/rlogo.grd", package="raster")) # make a polygon by shrinking the extent and casting object type Poly <- as(raster::extent(S) + c(15, -32, 25, -10), "SpatialPolygons") # build the layers in a list, adding the polygon to each layer themes <- c("Reds", "Greens", "Blues") PP <- lapply(seq_len(nlayers(S)), function(i) { levelplot(S[[i]], par.settings = rasterVis::rasterTheme(region = RColorBrewer::brewer.pal(9, themes[i])), margin=FALSE) + layer(sp.polygons(Poly, col = "orange", lwd = 2)) } ) # print each layer, but specify the location within a layout scheme print(PP[[1]], split=c(1, 1, 1, 3), more = TRUE) print(PP[[2]], split=c(1, 2, 1, 3), more = TRUE) print(PP[[3]], split=c(1, 3, 1, 3), more = FALSE) ### END > On Apr 11, 2019, at 7:28 AM, Kristi Glover <kristi.glo...@hotmail.com> wrote: > > He R users, > I have been struggling to plot a boundary map over the raster maps. I tried > using the following example, but the boundary map could not be displayed over > the three raster maps. > It works if we plot for a single raster. However when I want to plot the > three maps using "levelplot" and add the boundary map it did not work. I > wanted to plot three raster same time because the "levelplot" so that we can > compare the maps as they have only one legend. > > My example code is given below, do you have any suggestions? > > > library(gridExtra) > > library(raster) > > library(sp) > > library(rasterVis) > > library(rgdal) > > library(maptools) > > > boundary<- readShapeSpatial("boundrymap.shp") > > > minTemp<-raster("minTemp.tif") > > maxTemp<-raster("maxTemp.tif") > > averageTemp<-raster("averageTemp.tif") > > Temp<-stack(minTemp,maxTemp,averageTemp) > > > levelplot(Temp, layout=c(1,3))+ layer(sp.polygons(boundary, col = "yellow")) > > thanks > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see > 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. Ben Tupper Bigelow Laboratory for Ocean Sciences 60 Bigelow Drive, P.O. Box 380 East Boothbay, Maine 04544 http://www.bigelow.org Ecological Forecasting: https://eco.bigelow.org/ ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
