At the suggestion of Walmes Zeviani I downloaded and am taking a look at the sp package.
In an attempt to get going, can someone offer a suggestion about how to convert the below over to a version that uses the sp package? data(volcano) x <- 10*(1:nrow(volcano)) y <- 10*(1:ncol(volcano)) image(x, y, volcano,col = terrain.colors(100),axes = FALSE) contour(x, y, volcano, levels = seq(90, 200, by=5),add = TRUE, col ="peru") axis(1, at = seq(100, 800, by = 100)) axis(2, at = seq(100, 600, by = 100)) box() title(main = "Maunga Whau Volcano",font.main = 4) Thanks for any feedback and insights. _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
